Mcpatcher is a tool made by Minecraft Forum user xau. The primary function for this tool is to allow the user to play Minecraft with texture packs larger than the standard 16x16 size.
SowDispenser is a mod created by Minecraft Forum user whoshotdk. This mod allows the plantation of wheat via dispensers. This mod is a class file edit and does not require modloader, forge, or other apis. This might cause compatibility issues with other mods. The author has provided a video on both the forum post and his website showcasing the mod.