Algodoo

how about
pizza making challenge
you have to make a pizza of your choice (making a scene) then next/below/above put ingrediants (example:pepperoini,chez(cheese)(,ham,and some tomatoe sause)
below ingrediants put heat (like 4.5 heat or how ever you want to put down)
then after that your pizza needs a name! so make a perfect name for the pizza! example: perfect choice)i have a idea for the circle for the circle
like the normal color:20
darkness:55
lightness:80

Make A Algotrisomthin Event!:

Try To Make A Event That Has Never Been Used For Any Algotrisomthin And You (BlueKazoo)Rate It Out Of 100 And Thats How Many Points You Get!

How about a test

kill bugs

Rules: Try to guess how many bugs you will kill out of 100. Bottom 4 UFE. (also use random.org to randimize what number everyone gets.)

Car race

Rules: Everyone has a car of their color and they race down a track of your choice and which ever car gets the farthest by pieces wins

Challenge is over!