Crayon heart wall art - arrange in a heart and melt crayons with a blow dryer. add a picture in the middle to use it as a frame. Okay I've seen the crayon melty thing before but I love the heart/picture frame idea!
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Melted crayon art - 16 x 20 canvas, 3 packs of crayons cut in half, hot glue gunned down, and melted with a hair dryer. Black and white photos in the middle to make it look like the color has melted out of the photos
My own efforts at melted crayon art for our daughter. Board is the normal backing to the picture frame. Painted with white chalk paint. Letter and umbrella blanks cut out of cardboard and the rest is obvious from the pics.