Finally received the foam tips I ordered off Ebay a couple of weeks ago. Here is the link to my exact purchase:
https://www.ebay.com/itm/Memory-Foam-Replacement-Ear-Tips-Buds-For-Apple-Airpods-Pro-Airpods-3-Headphones/274140499698?ssPageName=STRK:MEBIDX:IT&var=574261147090&_trksid=p2057872.m2749.l2649
And...
Well I am surprised to report, they are nice. The main requirement for me was an ear wax guard. I want to keep my pods speaker grill clean. And they do have a membrane protecting the speaker. They appear to be just the plastic tip covered with a thin foam covering. I ordered the six pack. All six are the same size. I think they are similar to the medium tips. In the photo below, I placed a small Apple tip in there for comparison. If you have ever used Comply foam tips, these are not the same foam material. With the Comply foam, if you squeeze it, it compresses and then slowly expands. This is not that type of foam. These have a thin layer of foam. I'm trying to think of something to compare it to, but can’t think of what. It doesn't stay compressed when squeezed. They feel comfortable in my ears and the sound seems exactly the same as the standard tips. They connect and snap on the pods fine and seem to stay connected. They also fit perfectly in the case. I only just received them so my opinion may change, but for now I have to say I am happy with them. Thumbs up from me. Kind of strange, they came in this box.
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edit: thinking about it, they’re not memory foam just foam. i like them just the same. hope comply eventually makes some.