What do you think of [name]Cal[/name], and what do you think is the best way to get to it?
[name]Calvin[/name] is lovely, but I have a bit of an aversion to it for personal reasons. [name]Calum[/name] / [name]Callum[/name] (which spelling)? [name]Callahan[/name]? [name]Calhoun[/name]? [name]Callaway[/name] / [name]Calloway[/name]? [name]Calder[/name]? Something else entirely?
I’ve been liking [name]Callahan[/name] myself lately. I also really like [name]Callum[/name], spelled with two L’s.
[name]Callum[/name]! I love it!
I love the nn [name]Cal[/name]! I think if I wanted to use the nn, I’d probably opt for [name]Calvin[/name], but I do like [name]Callum[/name] and [name]Callan[/name] a lot, as well.
I also have tossed around the idea of [name]Caleb[/name], nn [name]Cal[/name], just because I don’t like [name]Cale[/name] and my poor sons would be left out because my daughters would likely get nns ([name]Isabelle[/name] nn [name]Belle[/name], [name]Arianne[/name] nn [name]Ari[/name], [name]Olivia[/name] nn [name]Liv[/name], etc.) and I tend to like boys’ names without nicknames… but it is a bit farfetched.
Good luck!
I think [name]Calvin[/name] is lovely and I do prefer it to [name]Callum[/name], just because [name]Callum[/name] is a well used boys name in the UK and somewhat dated. Although I do know the most gorgeous 4 year old named [name]Callum[/name], and he goes by [name]Cal[/name] a lot of the time.
I think [name]Caleb[/name] nn [name]Cal[/name] would be nice too, or [name]Callan[/name].
I can’t think of anything else, sorry.
I love [name]Callum[/name] and [name]Callan[/name]. I flip back and forth on which I like more for myself. As soon as I decide to go with [name]Callan[/name] I hate the idea of loosing [name]Callum[/name] and vice versa so I cannot pick between the two 
I have a family name that I’ve been considering (Calogero) and I really love the idea of [name]Cal[/name] as a nickname. I guess it doesn’t really work here. [name]Callahan[/name] and [name]Callum[/name] are both really nice names.
One of the popular boys I knew at school was named [name]Kal[/name] with the full name [name]Kalman[/name], which I always thought was cool.
I [name]LOVE[/name] [name]Callum[/name] and [name]Calvin[/name]. I’d be all over those names if they weren’t horrible with our last name. Good luck!