Here is a render of the Taurus horoscope/zodiac symbol in brown for Tavros' shirt from Homestuck.
-Print this out on iron-on transfer paper for dark fabrics fitted across a 8.5" by 11" piece of paper. -You can size to fit however you want. I feel like 6 inches across is appropriate. -You don't need to mirror it, as iron-on transfers iron print-side up. -When you cut it out, cut right along the lines of the pattern, as any white space WILL show up on the shirt.