Not "In the mail" anymore, but since I just arrived home from my US trip, I might as well share what arrived in the meantime/what I picked up while there.
Picked up:
HHKB Pro 2 Black printed and landing pads from EliteKeyboards (some Mechlube coming later by Mail)
Arrived while away:
Topre PBT Spacebars from AliExpress (stem needed a little retouch, but now they fit wonderfully.
HHKB metal sticker from cookie's GB
Tokyo Meetup caps from Decentkeyboards
Bonk Artisan from Mr. McHorse (he even included one extra Bonk and a Blank key without me knowing)
Zealios (80x67g and 40x62g) + Lube + KitKats from Zeal
HKP Artisans from the Flashsale (2x Bloodsplatter DCS MX, Warmaster Chinese new Year and Raven Black+ Green Poison)