making a T-Shirt cannon....

[Mr Tees!!]

"I got my head blown off by (insert business name here), and all I got was this lousy t-shirt"

You could even print blood spatter on it...

You're welcome

[mooseman]

water balloon slingshot, that's a great idea. I don't need it to launch 100', just 25'-35' or so I'd guess....I'll have to check that out. Roll and rubber band all the shirts I think. thanks guys!

Homer,
get some surgical tubing, way better than bungee cords....  great for making giant sling shots. we also use it to launch radio control sail planes. 100 feet of tube and 200 feet of nylon line stretched to the limit... you can sail those babies up to about 300 feet and grab the thermals from there.stretched to
https://www.google.com/#q=kind+of+tubing+for+slingshot

mooseman

[mk162]

yeah, you can make a badass looking slingshot, or make it look like a crossbow...that would be cool. o of course there is always this:

[screenxpress]

Homer,

Would this fit in your budget? - $289 plus about $100 for a co2 siphon tank.  Professional look and safe!

https://www.clubcannon.com/product/club-cannon/?gclid=Cj0KEQjw8u23BRCg6YnzmJmPqYgBEiQALf_XzXyPr0eWvnnj5TEXO_A85Fx3FfTOEMcW3C4XDPCd4lIaAqhR8P8HAQ

If that won't work, someone mentioned a sling shot - if you have a truck, you could run posts down in the headache rack squares on one side and use a sling to just pull back and propel every so often as you roll through the parade -

http://www.amazon.com/Bam-Launcher-200-Launcher-Balloons/dp/B004FS1B42/ref=pd_sim_sbs_200_2?ie=UTF8&dpID=416n58MGOGL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=1D352KWQ74V2BTAMQ9D6