Place it at the side of the block, and then place the items you hold on top of it to display it

An Equipment Rack is a block in Mini World: CREATA that is used to display tools or weapons. It can only be placed on the sides of a block, unlike Display Shelves. Items placed into a rack can be placed and retrieved easily; the player only needs to tap or right-click it.

Tools and weapons that can be placed into an Equipment Rack include:

• All melee weapons (like swords or heavy weapons like sticks or hammers)
• All ranged weapons (like bows, staffs, Bazookas, or guns)
• All pickaxes, drills, axes, chainsaws, shovels, rakes, creation hammers, or fishing rods
• All shields
• All dual wield items

Find this item in the Construction > Showcase Rack category in a Crafting Table or an Incomplete Crafting Table and craft it using these materials:
Timber (3)
Soft Leather (2)

Celesthium Booth
Display Shelf
Dummy Model