I can't see the pics on FB - you might need to change the permissions a bit. It seems like you have everything pretty much organised. Definitely delegate some of the food to others if you know they will be keen to do it. One thing I did think of for the party bags when you said noisemaker - there are these little tin frogs you can get (well they were tin when I was a kid, but they are probably plastic now) and they would go really well with the bug theme.
Ah yes i have it to people on my BB list... if anyone wants to see them just request to add me as a friend.. i don't want to open it up as there are certain people i do not want accessing ANY part of my FB... IYKWIM.

I bought the 'jumping frogs' for the boys ones but i think i remember what you mean, ohh i remember the clicky metal beetles too... hmmmm might have to look around... i love the cheap shops, they have some great stuff.