I've been playing mostly in the All-Time Greats (ATG) leagues and now have a 70's team going. In the ATG leagues, they have a lot of theme leagues going, but I haven't noticed any here.
For example, one format would be you could pick a franchise, such as the White Sox, and could pick any player who played at least one game for that team.
Do you guys over here ever have any theme leagues, such as each owner picks a franchise and can only choose players who are carded to that franchise?