I described previously how I make styrofoam stamps, using my designs. I will be playing with these fossil designs, shortly. Feel free to copy the sheet and use it yourself. Also feel free to share with me any stamps or art you made with these designs, if you found them to be useful.
Just click on the design sheet, and when it opens in another window, click again and drag it onto your desktop. Or, right click and choose the copy image option. You can then paste it into your preferred drawing program, and adjust the size to your purposes. I use Photoshop Elements.