Include mustache in your tweet to Twizhoosh and you will get a response with a mustache on your profile picture (if possible).

Sample Tweet

@twizhoosh Could you please put a mustache on my face? :)

Persian

It also works in Persian, just include ‍سبیل or ‍‍سیبیل in your tweet.

Sample Tweet

@twizhoosh می‌شه لطفاً یه سیبیل هم برای من بذاری؟ :)