My twin boys are 16 months also and have certain toys that they always fight over and sometimes its just one needing the toy that the other one has... As mentioned in a PP I try to give one another toy to play with. Sometimes it works, sometimes it doesn't. As far as buying 2 of a toy, it doesn't really help because an identical toy means nothing to a toddler. They want the one the other has and the one you're trying to give them is not the same, even though it is.
With the toys that they get really angry about while fighting, I usually tell them they have to share (whether or not they understand me) and if they can't I will have to take it away. They never play nice and I end up taking it away and hiding it. They forget about it and move on. Good luck
at 11:04 AM on Dec. 19, 2009