Escher style tessellation. Forever loop. Have fun!
A big THANK YOU to @Saftreb for his wonderful music performance. It's Johnny Cash's song "I walk the line" (1956). I drew the tiles with Inkscape. There are some tutorials on the web. Inkscape is a great tool to draw the tiles, which fit perfectly together. M.C. Escher (1898 - 1972) was a Dutch graphic artist. Johnny Cash (1932 - 2003) was an American singer-songwriter.
