This simple little yarn bowl helps keep your ball of yarn from rolling about when you're knitting, crocheting, or otherwise yarning.
The spiral needs support to print properly and can be a little tricky to remove cleanly from the smallest areas. I recommend using the upper part of the spiral for knitting from, as the pointiest bit of the spiral can tend to snag with the layer lines. Sand the surfaces that may have yarn going through them well, so the yarn doesn't snag, and if necessary, carefully flame polish to return the filament to its original non-sanded colour.
Make sure to print with sufficient infill and wall thickness: the spiral can be a little delicate otherwise, and you want it to have some decent weight to it... If you find it still slides around when in use, attach some self-adhesive non-slip feet to the bottom, or use a piece of drawer/rug liner glued on, or use adhesive foam stickers.
Check the scale before printing - this is scaled for a smallish bowl which neatly fits a 50 gram ball or cake of yarn. For a 100 gram ball or if knitting from store-bought oblong skeins instead of cakes, you may want it a bit bigger.