Easy mods for DC Multiverse Rick Flag?
 

I think this figure has great potential as an army builder but I don't want a bunch of mercenaries/soldiers who look exactly alike. What are the easiest ways to change how Rick looks?

I was thinking about swapping heads but I'd like to get confirmation that DC Multiverse heads can be removed and replaced easily. Another idea is to put a mask or helmet over the existing head. Are there any accessories like that to disguise Rick?

Thanks in advance!