They're not admitting it in English, but the National Museum of Science and Nature in Tokyo is holding an exhibit from December 17 ~ January 13 of grains from ALL THREE OF HUMANITY'S ASTEROID SAMPLE RETURN MISSIONS: Itokawa (#JAXA Hayabusa mission), Ryugu (JAXA Hayabusa2 mission) & Bennu (#NASA OSIRIS-REx mission).
If you're in Japan over the holiday season, do check this out:
https://www.kahaku.go.jp/event/2024/12hayabusaMMX/