The Pebble "family" of fidgets is a smooth ovoid shaped magnetic haptic slider that uses embedded 6x3mm round magnets, and teflon rails for an easy and controllable haptic fidget. Under your control, it can slide quitely, or snap loudly. It comes in multiple sizes for different sized hands or if you like a weaker/stronger toy. They are printed to order in whatever color you like. Look below for color options.
One of the coolest things about the Pebble family is that the magnet spacing and teflon rails are the same for all of them, making it possible to mix and match parts of one size with another. Also, if you buy two different colors, you can match the halves and have two dual-color Pebbles. The photos on this page are of Pebbles printed in "marble" style PLA filament, which is a light gray with black specks that resembles stone.
The Pebble Micro is 25x35x15mm in size and has 4 magents. Price is $10
The Pebble is 40x50x20mm in size and has 18 magnets. Price is $20
The Pebble XL is 47x62x15mm in size and has 24 magnets. Price is $25. Note: this has enough magnets to pinch, but should not cause injury.
The Pebble Mega is 50x70x30mm and has 30 magnets total! Price is $30. Note: this has enough magnets to pinch pretty hard, but should not cause injury.
Shipping is included for customers in the USA, but can be shipped internationally at additional cost. 3D Printing material/color options. Most are PLA, which is suitable for most prints. When there are special needs for flexibility, structural strength, or resistance to high temperatures, other materials can be used, and colors will be more limited.