Hey there, 
I have access to about twenty black widow spiders, and about 50 brown recluse spiders. For $200, I can release them at your party, and everyone can enjoy them. They are great for kids! I know a lot about insects from my job. I worked in an office on the first floor that had cheap windows, so I always had to kill bugs. I can tell you how to kill anything from a stink bug to an African burrowing scorpion. I can give a small speech to your party about this. 
Also, for an extra $50, I can release a bag of wasps in your house to really give it that insect theme that you are looking for. 
I look forward to hearing from you, 
Tim