I bought one of these - Breast Buddies I think the brand was. Google that and you should find some.

I bought it to use when DS was constantly distracted and not wanting to feed properly, but I never ended up using it much as it had little jingly bells in some of the beads which was actually too distracting for DS . They have one without the bells too though. I don't think they are that attractive though!

I also found a US company that sells them - both ones that have novelty beads to amuse bub, and others that are more fashionable - but with, say, a bead that turns or whatever - and they can also customise them too so that it has your bub's name or whatever spelled out in beads, and you can choose what beads/charms you want included. I can't recall the name of the site off the top of my head, but happy to have a look and see if I can find it if you're keen. I'm going to get one of these ones if I ever have the need again.

Cheers,