My wife asked if I could make her a jewelry dish to hold her rings and earrings using some FormFutura Granite StoneFil filament. It has a nice smooth feel and the matte grey looks quite nice on smooth shapes.
I have uploaded a few versions which were modeled slightly different ways. Version 3 was printed. The StoneFil gives it a nice smooth concrete or sandstone look.You can vary th extrusion factor to give the surface finish more of a porous look
0.15 layer, 0.6 nozzle
Filament: FormFutura StoneFil PLA Granite
Printed at 50mm/s at 210c. It took about 6 hours.
Take note of the ring spikes. Make sure you use a minimum layer time to keep them from overheating. Your retraction will also need to be dialed in to prevent stringing.
You can likely print the base much faster.
I'm a perfectionist who likes making custom things, and building a reprap printer scratches those itches perfectly. There's nothing more satisfying than designing a part to fix a specific problem and pulling off the perfect print to do it.