Belly button piercing
I did it too (about 3 years ago).
Make sure you keep it clean and wiggle it around. I was told to use BActine and I put neosporin on it for a while.
One mother's day, my husband and my girls (2 and 6 at the time) went out and got me a new belly button ring. It was an hysterical moment.
I LOVE it!! I work out a lot now so it looks good too.
I have thought about a tattoo as well. But, haven't gotten up the nerve. I figured the ring could come out easily but the tattoo would stay around longer.
Hugs for you little one.
NoDoubt