The first full sentence I ever learned to speak in Mandarin, and--four years later--still pretty accurate:
我不會說中文/"wo bu hui shuo zhong wen"/"I don't know how to speak Chinese."
Highly useful sticker for people who don't, in fact, know how to speak Chinese (or for those who do, but are trying to be funny about it).
This (kinda painstakingly) handwritten sticker is set against a pink background and printed on a high-quality vinyl sticker paper, then finished with a glossy protective overlay.
我不會說中文 (I Don't Know How to Speak Chinese) Vinyl Sticker
Material: Vinyl
Finish: Glossy
Dimensions: Approx. 7cm x 7cm
These stickers are printed on high-quality vinyl sticker paper and covered with an extra protective overlay, making them resistant to water, weather, and sun. (I don't necessarily recommend putting them through the dishwasher, though, because I don't have a dishwasher so I don't actually know if they would survive that ordeal.)