Serious question-Regarding raising money for Mikes's treatment

I know of a place that is selling stickers for Mike and all the proceeds go to the Mary Bird Cancer Center.



I understand that promoting self businesses and things along those lines are frowned up but is it against the rules to post the link for this?


I'm not associated with it, a friend of mine told me about it and I'd like to spread the word if it's not against the rules.