Sophie the Giraffe, a teether made from 100% chewable rubber, has been around since 1965.
Sophie is large (easy to find), squeezable (good for their fine motor skills), chewable everywhere (great for teeth pain) and squeaks when squeezed (fun). Sabrina loved it. And slobbered all over it.
Sophie is pricey (retail $22, $18 on Amazon), but Sabrina would tell you it's worth it. Now the company, Vulli, makes many more options, like an adorable little fawn...