I am looking for a cake filling that would be easy, and go well with three different flavors of cake. The baby shower is on the 18th of this month, and it will have 3 tiers to it, 12"; 8"; and 6". I am adapting the Wilton Baby Go Round recipe. The 12" 2 layer cake will be white cake, tinted lavendar. The 8" 2 layer cake will be lemon flavored. And the 6" 2 layer cake will be strawberry flavored. This cake is for a lady at work who had been trying and trying to get pregnant for a long time and finally achieved her and her husband's dream- and they are having a girl. So we are having a big surprise pary for her, with several different departments being involved. (When I am done making it I will make sure to post pics.!!) I looked at the recipe postings and could not seem to find anything. I am new to this website, so I might not be looking in the right place. Thanks in advance for your help.

Fudge filling would go with all those flavors.

Just wanted to say thank you for the suggestions. I found a filling that was good all the around from www.ladycakes.com. I used the recipe for White Chocolate Mousse Ganache- it was YUMMY!
I posted 3 pics of the cake under Celebration Cakes>Baby Shower! I am pretty proud of myself on this one! It got rave reviews!!!