Planning on doing graffiti, give me ideas

[Androgynous]

I'm planning on doing graffiti with my friends around the start of next year cause why not.
Give me ideas because I am not very creative right now. I just want it to look cool.

Also should I draw something like a symbol or should I just tag it with my name? (I'll still make the design really cool. 3 letter name btw)
I just want it to be fun and for it to look cool.

 

[thecel]

3 letter name btw

P
S
L

 

[NiZr]

draw a penis