That is absolutely amazing! I wish I'd thought of that when my Belle passed away a year and a half ago. (she looked so much like your Bella)
Unfortunately, I have to agree with this. This may sound ghoulish, and I truly don't mean to upset you by suggesting this: since it's only been 2 weeks, is there any way you could possibly re-bury your kitty? If her resting place was deeper, you might not worry about it so much. I'm only suggesting this because of a bad experience with my Mimi's grave. I guess I didn't dig deep enough, and when my Dad tilled the garden the next spring. ....... If you know just where your kitty is buried, you could dig right next to her, make the hole much deeper, and sort of manuever her so you wouldn't actually be taking her out of the ground.
That sounds so awful, and I'm so sorry for suggesting it, but it seems as if this is really weighing on your mind. I hope you can come up with a good solution. I'm so very sorry about your baby.
It's only been 8 days, i dont know if i could do it and i dont want to suggest it to mum or dad and upset them. The whole flower bed is hard and you cant go far down. Dad started digging in the backyard where it was soft but mum wanted her closer and not just in the yard where she could be walked over so we had no choice. I could not bear to look. Ill have to settle for something heavy or a marker