The Flopper Mod

This mod draws inspiration from the Flopper block in Minecraft 2.0 and adds special dispenser-like devices to the game. When activated with redstone, they transform any items and blocks placed inside into fish and shoot them out.

The modification features two varieties of Flopper. The regular Flopper converts each item or block into one fish. The more expensive Big Flopper has expanded capabilities: it can produce an unlimited amount of fish, outputting two fish per redstone pulse—one for the pulse itself and another for each item or block placed inside.