finger food

I"m just starting to introduce this and I think he is doing well. He loves his banana and blue berries and raspberries.
I just have two questions:
1) He has a very high palate and the food appears to get stuck up there. Is this normal?? ( for example today he ate blue berries and the blue berries skin stuck up there so he wouldn't take boobie cause it didn't feel right. It was so hard trying to get it unstuck as it goes so high up into his mouth.
2) I don't want him eating wheat as some in my family struggle with it. What are some good wheat free finger foods??

Thanks all.