Actually I would like to add one new idea to this. It is unrelated to RRay, but about the new age changing item :).
I think if the new item will be one use, and cost a few millions (no CS item is cheap after all) then it should not only change the pet to a certain age, but also freeze it in that stage, so it won't age. Not everyone can spend millions on an item every 15 days, and people would like to keep their pets on their profile. No fun if the pet has to be kept in Show Room ever after, to keep it in the young stage.
I think the item should have 3 function you choose when using it: 1) turn the pet baby and freeze 2) turn the pet teen and freeze 3) restart the aging of a pet (if you got enough of it being young)
Whichever you choose the item disappears :). Turning the pet adult would not be an option, everyone can wait till it grows up naturally.
I mean you use it once and gone. The 3 uses are the options of how you want to use it, but you cannot use it 3 times. (I do not think 3 different items are needed to do the different funtions, that would be just crazy o_0)