The Item Frames and Weapon Frames are one-slot wall mounted storage containers which display the items placed in them.

The key difference is that Item Frames will attempt to show inventory icons, and will shrink weapon and shield sprites to create them. Weapon Frames attempt to show items at full size, so will expand themselves to display instruments, tools, shield, and of course weapons. Both types of frame come in Wooden, Metal, and Vanishing variants, and can be rotated and flipped.

Craft them at the Item Frame Bench, itself crated at the basic Inventor's Table.