thank you. i mostly use acrylic paint. i started out with markers but they tend to bleed and mess up when they get wet and all that. with paint i can get lines perfect and it's waterproof. and even when it gets dirty you can wipe it right off the paint. acrylic paint does tend to crack on creases and edges, though, so i've really just been sticking to painting bags since they don't crease anywhere.

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ʎɐqǝ uo pɹɐoqʎǝʞ ɐ ʎnq ı ǝɯıʇ ʇsɐן ǝɥʇ sı sıɥʇ