This is a quickly thrown-together demonstration of how water cannons can be significantly more effective in Masterwork using magmatankers instead of minecarts, so the globs are larger.

The dwarves have built an oversized squirt gun and sent a miner (who drew a very short straw) down to invite some friends to visit.

A couple pets are staked out just inside the barrel to encourage the guests to rush inside as fast as possible, so they have no excuses about loitering or not making a wholehearted effort to enter the fort.

This uses Masterwork DF3 with Ironhand graphics. Just start it up, unpause, and enjoy the extremely goofy results!