Back in the 90s, I did a lot of mail art (small scale and one-of-a-kind artworks, letters, collages, and post cards exchanged through the mail). I’ve recently gotten back into it (and believe it’s making a comeback).
Part of the fun of mail art is creating your own custom rubber stamps to embellish your artwork. In the 90s, stamps were expensive and took weeks of production and turnaround time. Today, sites like Rubber Stamps Unlimited make it quick and easy. And cheap (averaging around $10-$20/stamp). To get a stamp produced, all you do is upload your art (up to 3.75” x 6”), choose the stamp type you want (rubber or self-inking), and place your order. Stamps arrive in just a few days. I’m also using rubber stamp artwork for packaging on some limited-run product kits, something other professional makers/kitchen table business moguls should consider.