Filters
Ferguson's Paradox - James Ferguson

Impossible Object

Designer: James Ferguson
Maker: Buttonius Puzzles & Plastics

Di-Short-Bricks - Peter Knoppers

2D Packing / Acrylic

Designer: Peter Knoppers
Maker: Buttonius Puzzles & Plastics

Feed the Cat - Oskar van Deventer

Sequential Movement / Acrylic

Designer: Oskar van Deventer
Maker: Buttonius Puzzles & Plastics

Black Magic - Roman Götter

Assembly

Designer: Roman Götter
Maker: Buttonius Puzzles & Plastics

Peter's Non-flipping Tri-Cairos - Peter Knoppers

2D Packing / Wood

Designer: Peter Knoppers
Maker: Buttonius Puzzles & Plastics

The Ampelmann Puzzle  - Roman Götter

2D Packing / Acrylic

Designer: Roman Götter
Maker: Buttonius Puzzles & Plastics

Peter's Flipping Di-Flaps - Peter Knoppers

2D Packing

Designer: Peter Knoppers
Maker: Buttonius Puzzles & Plastics

15 Interlocking Quads - Peter Knoppers

Assembly / Acrylic

Designer: Peter Knoppers
Maker: Buttonius Puzzles & Plastics

Feed the Cat - Peter Knoppers

Object Escape / Acrylic

Designer: Peter Knoppers
Maker: Peter Knoppers