Magnetic Sheets that can be used to braille.
Standard Flexible Vinyl Magnetic Sheeting
Paint it, Decorate it, Cut it to Shape, place stickers on it.
. Use Markers, Acrylic Paint or Krylon Spray Paint to decorate.
Magnetic sheet 8 1/2 inches wide by 11 inches tall and it is 1/64 inch thick (0.020")