I LOVE when people do activities at their parties - how fun would be a mad scientist theme party be?!? I would be pushing the kids out of the way to try the experiments! You can find tons of fun experiments to do online... so here are a few ideas for putting a little frosting on the party!
To instantly create a fun room... how about a room wrap - FULL wall sized cover that will cover all your frilly pictures and curtains and make the kids feel like they are in a mad scientist room! Source
How clever is this DIY pinata?!? I am so impressed with how she came up with this! Using a balloon and material (see the source) she rocked out a test tube pinata! Even if you just use them as decorations around - these would be great! Source
Grossly fantastic jello "lab test". Boys would LOVE cutting this up! Source and recipe
You could also use jello in petri dish and gummy worms! Make sure you have plenty of test tubes in racks and things around, as well! Source
Cover the food and favor bags with radio active stickers! I have a few friends that cook food that should use these ;o) Source
My favorite mad scientist cake! I love this! Little cotton candy on top, va-la! Source and directions