Simplicity is not easily kept in this group
Here's my take. Yes, a family/work safe calendar is appropriate to be sponsored by the site but, the other can be done and I will post it/them. It/they will however, have a strong warning about the content so as no one is surprised when ordering. I would suggest a fairly harmless cover graphic that can be used on all of the calendars for store thumbnail purposes.
This may be overkill but, can we make a link to the other calendar(s) submissions by request only so eyes that do not want to see nor eyes that don't need to see don't have to?