I actually used a heart design that I downloaded from one of you fantastic people. I am so sorry I cannot give the credit to a specific one, I got them all together and am not sure of the original creator, so sorry!
This was very easy (once you have the design, of course!). Last year I made a wedding congratulations card with very similar hearts that I had to buy (didn't have the cricut then!), and as they are sold by 25's I've been using them quite a lot.
I'm preparing a party now and when I was looking for ideas and opened the file, the bendy heart reminded me of those I had to buy, so I made 3 concentry hearts just as a practice. I might need them later, so I'm very happy I will never have to buy them again
Enjoy, and many thanks to the creator, please let us know who you are!
Cheers,
Eva