What level colouring should I print for a 4 year olds birthday party?

[rmelondon]

I need to print out some colouring for my daughter's birthday party. What levels are good for 4 year olds does anyone have any idea or should I just do a range?

A few examples here

Oh come on Op...if you want to link your website just say so

Levels?
What characters are they into? Print some of those and that’ll do.