My daughter just had her half birthday, which reminded me of a cute project I made for her birthday last year. It’s a party hat that you sew out on your computerised sewing machine and then tie elastic through the holes so that they can put it on their head.
I purchased the design from an online shop called Embroidery Library.
The great thing is you can pick and download the designs straight away. No waiting for snail mail. The prices are in USD but pretty reasonable, I think. You can choose to buy just one design or the design pack which has 19 different hats including a crown or police hat.