I decided to try out a glazing method where you use TSL mixed with pigment powder. You paint it over an already baked polymer clay piece, then bake a second time. I used powdered chalk pastel instead of pigment powder.
I pressed a real leaf into the clay to create the impression. I love the result and plan to make some necklace pendants in the same way.
The only magnets I have on my fridge are ugly free advertisement ones. I'm glad to add some color and interest, hopefully I'll soon replace all my magnets with handmade ones.