Nickname ideas for Stephen

My husband is a JR... Stephen Dexter C... His dad goes by Steve, my husband goes by Dexter, so we aren't quite sure what to call our little boy if we chose to make him a third. My husband has always wanted a third, but is having a hard time committing to it because he doesn't know what he would call him, or what the baby would go by. 
We know most nicknames come with the child, but are looking for ideas on what he could actually be called to see if there is something we are missing. All we can think of is Stephen (creative I know 😉)