I think I just found a cool nipple stopper for my cups: The sole of my flip flops.
Looks like this: http://3.bp.blogspot.com/-MtS7Mywxgw0/T15FLbTzztI/AAAAAAAACeo/Sgm7Yx9Cmxc/s1600/IMG_0267.JPG
I just cut it to a round shape and it fits nicely into the cups.
The best part is that it stays in place. Tomorrow I will check it out.

I just cut it to a round shape and it fits nicely into the cups.
The best part is that it stays in place. Tomorrow I will check it out.
