Lucky bees are probably perfect for him. These are plastic with a metal insert. 12 grams. They look good and feel decent. They stack well and sound OK. I'm doing exactly what you propose and building sets for my non-chipper sons. I'm going super cheap and doing DIY Avery labels. These chips take a 1 inch label exactly. Here's an example of one of the sets I'm doing for my son who is into Japanese Samurai.
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I bought a massive set of these from a local flea market operator. I'm building five 550 chip tournament sets. I will have over 1000 chips leftover when I finish my sets, so if you do find some, but need more of specific colors (I have a ton of red and quite a few blue) then hit me up. I plan to continue to accumulate these as I find them in the wild at low prices. (under 10 cents ea.)
If you go the DIY Avery route, let me know. There are quite a few choices of labels. The ones you want to use are called "Surface safe - white film for signs."