Brush/pen holder for mugs

thingiverse

I repurposed an old Star Wars mug instead of throwing it away and turned it into a brush holder. I designed this to keep brushes, pens, and small tools like Q-tips or tweezers separate. It also protects the mug in case you want to use it again in the future. And it has a hidden compartment for storing microSD cards or something similar. This design fits any standard-sized mug, but you can easily scale it up or down to suit your needs.