I wanted my daughter to have a fun shirt for St. Patrick's Day and decided on this:
So quick and easy. I put an embroidery hoop on the part of the shirt I wanted to use, so the fabric would stay taut. Then I grabbed a bag of her little craft sequins and pulled out the green ones. I sewed them on by stitching through them twice and putting the thread on either side to keep them down. I was quite pleased with the result.
I created a Valentine's shirt for my daughter with sequins too. Only the heart was smaller and filled in. An easy way to make a simple holiday shirt, and I think you could just remove the sequins later if you want to wear it past the actual holiday.