myQSL.org: Designs: Special Materials!
Here are cards that went above and beyond mere paper and ink.
some kind of tin
white plastic
rubber stamps
broomstick
3D stripe pattern on plastic
embossed
old computer punch card
embossed on a velvety fabric material
some kind of tin some kind of tin
white plastic
rubber stamps
broomstick
3D stripe pattern on plastic
embossed
old computer punch card
embossed on a velvety fabric material