I didn't want to spend $40 on a bead spinner when I could design my own! This prints as two parts, with the base wider so you can hold it down with your fingers or thumb to control while spinner to get seed beads on your beading needle. 

I recommend using the 3mf file uploaded that is catered with adaptive layers and concentric top and bottom for the smoothest spinning! PLA Basic is the best option, as matte will have more friction.