Short sentence suitable for children T-shirt ?

[lakerol]

大家好， I live in Spain and I have some  friends are adoptive parents to two kids who were born in China (aged 2 and 12 years old);  the father has actually some basic Chinese command, the older child does not. they would like to print some T-shirts with some sort, fun, inspirational sentence / quote which would be suitable to be printed on a child's T-shirt . It would be handmade and I'd write the characters down for them. Any sugestions on this ? IS there any famous saying or proverb (not very long, around 15-20 chars max) which you would  suggest? 

[imron]

Are the children male or female?

[Jim]

Might not be everyone's idea of fun but this from the Analects would be punchy:

 

毋意、毋必、毋固、毋我

http://ctext.org/analects/zi-han#n1313

 

Found this translation too:

The Master forbade four things: One must not act on guesses, one must not demand absolute certainty, one must not be stubborn, one must not insist on oneself.

(From this pdf: http://www.indiana.edu/~p374/Analects_of_Confucius_(Eno-2015).pdf)

[EnergyReaper]

Hello, I strongly recommend a web site of the brand -plastered 8 , which was created by Dominic Johnson-Hill(Chinese name:江海森), a famous British guy living in Beijing for about 20 years. I think you can find what you really want there. Just contact with them. Hope it helpful.

[Wippen (inactive)]

What about  

脱颖而出 does that work since they obviously do stick out, or would that not be suitable?

[roddy]

中國製造

[imron]

If either of them are boys I'd go with 有其父必有其子 (like father like son).

[Publius]

15 minutes ago, imron said:

有其父必有其子

Don't use that. It's confusing. Because it can be used both positively and negatively. To me it's more often used negatively, like you're accusing their father of something. See the examples here:  http://www.bbc.co.uk/learningenglish/chinese/features/todays-phrase/ep-170110