Nani Stamp

This is the kanji (Chinese character) for the Japanese word, nani. It just means 'what,' so any native Japanese speakers or other nerds, like me, who know Japanese can have a little giggle together. ^^ I did the calligraphy myself too, so if it's a little off, please tell me. ^^''

Also, can anyone tell me how to save stamps with transparency? Whenever I try, it always turns out as white... D:

[Please comment or fav if you are going to use this stamp so that I can know if anyone else likes it. c: ]