How do I run a slime-making party?

Will guests make slime or play with slime you've prepared?

Decide this about a week before the party. It affects almost everything else: how much mixing equipment you need, how much help each guest needs and how long the slime part of the party takes. Whichever you choose, try it beforehand so you know what's involved.

If guests will make slime, choose a kit or recipe with instructions you can follow, and test it before party day. Use its ingredient amounts and directions. Don't guess at a bigger batch for the whole table. This guide gives activity ideas, not a tested slime recipe or a fix for batches that go wrong.

If guests will play with prepared slime, give each guest their own portion and work tray. You can explain one challenge and everyone can start together, with no mixing step to wait for. Keep extra supplies nearby instead of putting equipment at every place.

How to set up the slime table

Set up the table before guests arrive, with enough room for hands, trays and any mixing equipment. Keep food, camera props and bags away from the slime supplies. If you're hosting outdoors, decide ahead of time where the activity will move if the weather changes.

Count the places at the table before you decide how many guests can join at once, and remember to include the birthday child and any siblings who will take part. If there aren't enough places, have one group at the slime table while another group does something else, with an adult available to help each group. If you're hosting on your own, keep everyone together and make the activity simpler.

Show guests where to wait and what they can do while another group has its turn. Set up drawing supplies or picture bingo at a clean table for anyone who wants a break. For picture bingo, give each child or pair a picture bingo card and a small cup of markers, and agree on the winning pattern before you start, such as one full row. Call one picture or word at a time while players mark any match on their card. The round ends when someone completes the agreed pattern; then everyone clears their card and you can play again. If you need cards, the birthday picture bingo cards page has picture boards and caller cards.

Slime party activities to choose from

These are suggested house rules, not tested recipes. Use prepared slime for the play activities, and show guests what to do in about a minute. Guests can pass, try again or change their idea. Finish each round together. Nobody gets knocked out.

Make slime together: set out your kit or recipe, the ingredients and measuring equipment it calls for, bowls, mixing tools and trays, and nothing extra. Show the first step, then help guests follow the directions at their own places. If supplies are shared, say who goes first and change the order for the next step. When everyone has finished the instructions, put the mixing equipment away before you start a play activity.

Before guests sit down, decide where the shared tools will go and the order children will use them. Planning shared materials without constant arguments also means counting supplies again if the plan changes, such as moving indoors because of rain. The recipe directions stay the same.

Slime shape challenge: read out a prompt, such as a spiral or a pretend pancake. Let guests work, then invite anyone who wants to show their shape. Three prompts is a good first round, then ask whether they want more. Nobody wins, and an unfinished shape still counts as a turn. To add measuring, have guests make a rope that stretches across their own tray and measure it, then compare their first and second tries instead of ranking guests against each other.

Pretend slime shop: each guest makes up a product, such as a green swamp pancake or a purple moon cushion, shapes it on their tray, writes or says its name, and describes it to a partner. Then the partners swap. Keep the shop pretend, without swapping any slime, and keep the paper at a separate writing spot.

Slime creature stories: guests shape an imaginary creature and answer two questions: What is its name? Where does it live? Children can tell a partner instead of the whole table. Younger guests can give a name while an older guest adds a short adventure. Have paper and crayons away from the slime for anyone who would rather draw.

Decorate a take-home label: write each guest's name on a label, let them add a name for their slime or a picture, stick it on the closed container and move the container to the pickup spot. Send any product instructions home with the slime.

An example 90-minute slime party

This is an example schedule for a party where guests play with prepared slime. It doesn't tell you how long any recipe takes. The six parts add up to 90 minutes. If guests will make slime, test that first and change the activity time and finish time to fit.

What to do when an activity isn't working

Have a plan ready before the party for an activity that doesn't hold guests' interest and for a slime batch that doesn't turn out.

If both the slime and your planned backup fall through, keep one game in mind that needs no supplies. Knowing what to do when the main party activity fails includes checking that the backup has enough supplies, places and help for the guests who are there.

Putting slime away before food and pickup

Do the slime first, wash hands, then eat. Move the containers to the pickup spot before putting food out, and keep packed slime away from the food area. Follow the cleanup directions for the materials you chose. A table covering helps you gather up supplies, but don't assume it protects every surface or that all slime cleans up the same way.

Decide before the party whether you're serving a meal or snacks, and tell families which it is. Slime party food kids actually eat can be familiar options, such as wraps, fruit cups or pudding, with a themed look if you want one. On the day, the food goes out only after the slime is packed away and hands are washed.

Use containers that suit your slime, and label each one with the guest's name. If you'd like photos, set up the camera spot away from the slime table and take pictures after cleanup. Guests could hold up their pretend shop sign or pose as their slime creature. At a sleepover, leave the containers with the belongings that are going home.

Slime party checklist

• Decide whether guests will make slime or play with prepared portions.
• Try your kit, recipe or play activity before party day.
• Talk to families about materials and how much help their child needs.
• Count work spots, including the birthday child, and plan turns if everyone won't fit at once.
• Set out a tray for each guest and a table covering that suits your setup.
• If guests are making slime, gather only the bowls, tools and ingredients your instructions call for.
• Have suitable containers, name labels and markers ready if slime is going home.
• Keep extra supplies, cleanup materials and a spot for used equipment nearby.
• Set up drawing or picture bingo at a clean table as a backup.
• Choose a place away from the slime table for food.
• Decide who will help with slime, clear the table and greet adults at pickup.

Sources and further reading

• Slime Party Activities
• Birthday picture bingo cards

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