Equitice

Give items custom color-coded names with /rename in chat. Client-side, works on any server.

Summon a pack of buffed tamed wolves on top of you with a fishing rod as seen in Flamefrags' Unstable SMP videos.

Client-side pvp score overlay with player heads, themes, and auto server detection for applicable servers.

Low durability fishing rods that call orbital strikes, there are two shot types, works in both survival and creative

Shows a live HUD for whatever music is playing on your PC right inside Minecraft. Appears as a small pill you can expand into a full card with album art, seek bar, and play/pause. Drag it wherever you want.