Here is the slime recipe:

[u]Homemade Slime Recipe </u>

Borax
White Glue
Water
Food Coloring (optional)
Ziploc bag

1. Borax is available in the laundry section of your local grocery store. Take a cup of water and add to it 1 Tbs. of borax (approx 4% solution). Stir until completely dissolved.
2. Make a 50% water 50% white glue solution. Take 1/4 cup of each and mix thoroughly.
3. In a ziploc bag, add equal parts of the borax solution to equal parts of the glue solution. 1/2 cup of each will make a cup of slime.
4. Add a couple drops of food coloring.
5. Seal bag and knead the mixture.
6. Dig in and have fun. Remember to wash your hands after playing.
7. Keep your slime in the sealed bag in the refrigerator when not playing with it to keep it longer. Unfortunately it may eventually dry out or grow mold. Just throw it out and start again!

Explanation:
The borax is acting as the crosslinking agent or "connector" for the glue (polyvinyl acetate) molecules. Once the glue molecules join together to form even larger molecules called polymers, you get a thickened gel very similar to slime. If you've tried this recipe (formula) before using blue starch (instead of the borax) with mixed results, you won't be disappointed with this one. Works everytime! If you have access to a chemical supply house, try a 4% solution of polyvinyl alcohol instead of the glue for a less rubbery polymer and one that is transparent showing off the color better.

Safety:
Not to be fed to your pet or baby brother. Not good for leaving in carpets or on furniture overnight. To keep almost indefinitely, leave in ziploc bag in refrigerator when not sliming! Not a bad idea to wash hands before (so it doesn't grow mold) and after (so mom will let you eat dinner) playing with it.

Here is the poem I put with it:

Poor old witchy got a cold
From her nose so long and old,
Drips this goo so green and cold.
Drip...Drip...Drip...
Through your hands it will slip.
You thought it was slime...
but it's snot!!!

You and your daughter will have fun making this recipe. I know my sons loved to make this stuff. One of them even did it for a How To speech for school. Sounds like your daughters party is going to be very memorable!