When I paint illustrations for cards, calendars and stickers I often have to make 2 of the same image and sometimes 4 if it is a seasonal item. I have a game I play with myself to see if I can make them look identical. Sometimes I have to make the same item in reverse and I enjoy this as well. Here are some examples of my submission for Illustration Friday's "double" theme.
1. Love Grows (greeting card)
2. Homes for the Holidays Stickers (spring/summer)
3. House Paint stickers (LOVE & Happy Birthday)