TMNT - teenage mutant ninja turtles? That would be cool. Alas, I'm already a little concerned about getting the 3 costumes done for DD, SIL & me done in time.

Maybe if I win the lottery soon so I can retire early ...

Btw, ac - if you select the 2nd option after you create your countdown ticker to cut & paste here on Disboards, it'll show up. (Html format doesn't work here - found that out by trial & error.)
Awesome - hope to see you all there.
I am making our costumes out of lightweight cotton fabrics (for the most part, anyway) so we won't roast in them.
As long as you get or make costumes in lightweight "breathable" material, you should be reasonably comfortable in them. You could use fabric paint on those orange t-shirts & draw jack-o-lantern faces on them; or put big red circle on one shirt & write "STOP" in middle of the circle, put big yellow circle on another one with "CAUTION" on it & the 3rd shirt with a big green circle with "GO" written on it so the 3 of you could go as a traffic light.