Fly-B-Gone!
Hugues Ross

Hides butterflies/fireflies

Sticks Stones
MikeRedwood

Makes Sticks from leaves and scatters small stones

Mud
Blocky Player

Adds stylish mud blocks and even blocks you can walk through. Setup traps, secret rooms and much more!

Silver
Jackknife

adds silver ore and tools

Too many ores
TeufloV

This adds 53 new ores. But most of them are useless.