With Cricut Design Studio, I opened the file of the bonnet from my Cricut Heritage cartridge - enlarged it to the size I wanted, and then made another bonnet and placed over the first one to ensure size - then comes the fun part, make one of the bonnets a mirror image and slide it close to the other without overlapping it toooo much!!!! Using the weld option it welds the bonnet together to make a card!!!! Now, how kewl is that??
Here's the entire line-up just in case you get lost along the way!