ETA: The BEST gift I could get would be something like a date at the movies with you .. or something else that involves us spending some time together .. and I'm not buying lunch ;)
Make her a cake with 60 candles, literally, not just two candles formed into numbers 6 and a 0, but 60 independent pieces of stick candles. Should burn with a single bon fire if you put them real close to each other.
Take her out to dinner, maybe give her a gift card for a place she likes to eat at/ shop at.
she would love something homemade and from the heart! lol sounds lame but teust me shd luv it