FANXIN GEAR CUBE, Modification 3x3 Gear

Not sure what to buy next. My favourites are the 3x3, Square-1 and horror. Thinking about a ghost cube, atlas cube (supercube) and maybe an impossible cube or perplexus. Any other recommendations?

Cubes

Cube Twist Professional Puzzle Speed Cube Magic Puzzle Twist - Puzzle Twist Cube - Aliexpress

Recent Toys - Gear Cube Buy at Best Price from Mumzworld

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QiYi Gear 3x3 - The UK #1 Speed Cube Shop

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QiYi Sandwich Gear 3x3 Black → MasterCubeStore

Gear Truncated Cube, Lanlan Gear Cube, Magic Cube Gear, Puzzle Stickers