Any Dungeons & Dragons diehards here? Well, you might want to check out the Inflatable D20 that is basically a pretty huge version of the original twenty-sider. It is mostly air within, so you can imagine the amount of bounce that goes on when throwing this in order to get that critical hit in during an intense session that sees you engaging a red dragon in battle. Needless to say, this is the largest die available in the market at the moment, measuring up to 17″ in diameter! Hopefully the $11.99 price tag won’t deflate your campaign in the same manner a pin prick would do for this die.