At TJ's The Kiddie Store near my home in BC, Canada, and I'm sure at other stores, they sell these self-feeding-handled-netted-bags.
oooh, hard to explain...
picture a rattle, but instead of a toy on the end, it's a netted bag. You can put ice chips in it, frozen grapes, frozen food of any sort, chunks of watermelon, apple slices, oranges, etc. It's so your LO can feed himself but can't choke on little bits and pieces. If you haven't started solids, I'd get one of these and just fill it with ice chips, or maybe ice cubes made from very diluted juice so that he wants to gnaw on it.
Good Luck. Tell me what solution works for you, if any, so I know what to do when I get to this point.
Sonja