d4 - Rollable 4 Sided Dice by Leo Atreides — Kickstarter

Rolling Realms Premium Dice Set - Pair of 35mm Epic Dice, Gate Keeper Games, Jumbo Resin d6s For Use With Stonemaier Games' Rolling Realms, Tabletop Roleplaying, Game Accessory

Infinity D4 by David Derus — Kickstarter

Dice - Four Sided - D4 – TarquinGroup

Dice - Four Sided - D4 – TarquinGroup

Set of Unique 4-sided D4 Dice in Five Colors : Toys & Games

Ember Dice! Premium, Handcrafted Metal Dice! by Ember Forge — Kickstarter

Set of Unique 4-sided D4 Dice in Five Colors : Toys & Games

20 Sided d4 by Topotown, Download free STL model

Set of Unique 4-sided D4 Dice in Five Colors : Toys & Games

Role 4 Initiative Opaque Dark Gray (w/ Yellow) 7 Dice Set