A Complete Collection

All 95 museum pieces. The minerals mostly come from geodes - keep every type (regular, frozen, magma, omni) and crack them with Clint; the artifacts come from worm-tile digging, fishing chests, monster drops and panning. The last few are always rare artifacts with drop rates designed to hurt - dinosaur eggs (Skull Cavern prehistoric floors, or fishing treasure), and the region-specific dig drops.

Two tips that save real time: check the collections tab to see what's missing and where it comes from, and donate before selling anything unfamiliar - buying replacements later isn't always possible. The 95th donation also hands you a Stardrop (Mystery Of The Stardrops).