Well when Dominic was a baby my husband called him Baby D, now it is Little D and I guess when he is bigger it will be Big D. I just call him Dominic besides Sweetie.
Jillian - Mostly Jilly, Jilly Bean, Bean, Leese, Leesey Piecey (all from her MN Elyse) thats pretty much it. Oh, and DH calls her Butt like all of the time *rolls eyes* I told him that's not allowed near friends lol.
Ryan is Ry Ry, Ry, Bubs, Bubby and Bubba. Jillian pretty much 90% of the time calls him Bubby.. it's so sweet. But, he told her at school she has to call him Ryan lol. He calls her sissy or Jilly.. usually Jilly. Hardly ever does he actually call her Jillian.