Baby teeters??

Hi all - our little one has started teething. He is 3.5 mo old. We have a few tethers we got from our registry (the freeze car keys and some cactus freeze) but they all are too big for him or too hard for him to grasp independent. He can hold things on his own but they tend to be smaller things with easy grips. I was wondering if anyone else is going thru this or has with previous little ones and can recommend a great teether he can enjoy that’s on the smaller side and easy to hold for LOs this small? Thanks!!