We recently adopted our girl, Shade, and after she threw up large splinters from other bones we had bought I started doing my research and came across Mika & Sammy's, which had great reviews.
The bones are a bit on the expensive side compared to similar products in the store, but I can see why: they are high quality, they smell amazing, they last forever and most importantly they do not splinter.
We run on a tight budget with 3 kids in our house, but we will definitely be buying from Mika & Sa...