How about a butterfly pattern? Enjoy! I had to work out my pattern-making skills so I thought I would throw my successful image and pattern out here for you butterfly-lovers.
Yep, this is tile-able. You can move the green, blue, cyan and magenta butterflies anywhere WITHIN the confines of the image and it will remain tile-able. In Photoshop, select all and choose Edit/Define pattern. Then fill any document with a pattern and you can use your brand new butterfly pattern! Hooray.