How do you deal with family/friends asking for free art? Just saying no hasn't worked too well for me
I try to let them know that what they want isn’t in the range of things that interest me to draw. If this isn’t true for you… then explain that it’s hard for you to just want to produce something on the spot, and that inspiration is always personal. Maybe you have old art you would part with? That’s the only way I’ve ever really dealt with it.
write them up an invoice