M....don't beat yourself up!
Children especially TODDLERS...get into EVERYTHING! This is how they learn...granted it doesn't make us as Mom's feel good, but you have to remember when we deliver our babies or get our children they do NOT come with an Owner's Manual and we have to learn on our own and with the help of the Good Lord, Good Friends and Other mothers.
Any nail polish remover will work, but just make sure to wash the skin afterwards with soap and water. I also find that baby wipes CLEAN EVERYTHING. I use them when my daughter takes markers to her body or the carpet...they clean up beautifully.
Again, do not worry you are a GREAT Mom if you weren't you would not be asking for help.
Bless you and yours,
G.
PS do not hesitate to contact me to talk or visit as I am the mom of a soon 2 b 17 yo and a 2 1/2 yo - both are girls. :)____@____.com