envelope for horse lovers do you know someone who loves horses? why not send them a drawing in this horse-themed envelope? print out the envelope and colour in the picture. cut out the envelope along the grey line. fold the envelope along the dotted lines. stick glue onto parts 1 and 2 and fold the envelope shut. put your drawing into the envelope and whinny all the way to the postbox. say ‘gee up, horsey, gee up’ as you post the letter in the postbox.