Do you build them?
Discussion
For myself. nostr:npub1q4zl8v0cpeu0lv47msq2z0jpkr2q3wq5d4ukylxg9sx7t7rcz0uq5ftv7q for s9, braiins software. nostr:npub1lrjgpa9m2dl6esdah5pq7m005ymwh4glq4aet76q2zlz2f83esfsa2zvrj makes fancy boxes if you want it to look nice.