Where to get foam/carbon limb cores?

[FlyinCedar]

I have seen quite a few people using the foam limb cores, and also carbon limb cores, and was wondering if anyone knew where to get them to try out. Might be something interesting to play with when building a bow. Thanks

[Robertfishes]

old master crafters 847-623-2660 no web site, you will have to call them. I have not bought or used the foam. I am still a rookie so I will stick to the wood and bamboo that I get from KennyM