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

8 by 8 Squeer Puzzle - Rik Van Grol

Assembly / Acrylic

Designer: Rik Van Grol
Maker: Buttonius Puzzles & Plastics

Z-shift - Peter Hajek

Put-together / Acrylic

Designer: Peter Hajek
Maker: Buttonius Puzzles & Plastics

Quantum Entanglement - Goh Pit Khiam

Burr

Designer: Goh Pit Khiam
Maker: Buttonius Puzzles & Plastics

Sam Lloyd 15/14 Cracked ?! - Ton Delsing

Sequential Movement / Acrylic

Designer: Ton Delsing
Maker: Buttonius Puzzles & Plastics

Edelweiss - David Rousseau

Interlocking / Acrylic

Designer: David Rousseau
Maker: Buttonius Puzzles & Plastics

Coin Maze - Oskar van Deventer

Sequential Movement / Acrylic

Designer: Oskar van Deventer
Maker: Buttonius Puzzles & Plastics

A.D. Monogram Puzzle - Ton Delsing

Put-together

Designer: Ton Delsing
Maker: Buttonius Puzzles & Plastics

Snakes in a Plane - Oskar van Deventer

Sliding / Nylon 12 [Versatile Plastic]

Designer: Oskar van Deventer
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