As one of its daily deals, HoboNinja offers this Men's Battle of Plastica T-Shirt
for $9.99. Coupon code "IWILLSHAREHOBONINJA" cuts it to $5.99
. With $2.99
for shipping, that's $19 off and the lowest total price we could find, although we saw it for a buck less last fall. It's available in sizes S through XL. Deal ends today.
Note that size XXL is available for an extra 99 cents and size 3XL for an additional $1.99.