I'm getting this up a little late for Teacher Appreciation Week, but I think it would also make a great end-of-the-year gift, too! I made this little printable to go with a Target gift card (cuz I love Target and just assume every teacher does, too!). :) You can get the printable HERE.
You'll want to print the card onto white cardstock and make a slit on the black line with a box cutter or exacto knife.
Then glue the top and bottom of the card onto a larger piece of cardstock. (You can slip the gift card in to use as a guide for where to put the glue.)
Have your child sign it and slip the gift card in. Easy peasy!