I actually do have fuzzy dice and a hula girl. They go well with the plasma globe that's on when supercharging at night.
Buzzkill alert (well, not really):
Having just had a convo with the new insurance company about coverage for aftermarket efforts, the list is somewhat fresh in my mind:
1. Window tint - noticeable every day. The pano really needs to be done next. I wear a cap now to cut the heat and glare, and the pano shades are barely useful.
2. Paint correction and protection - still shiny and no swirls 7 months later
3. Dashcams and polarized filters - these provide both peace of mind and an almost-daily source of amusement
4. Powdercoated the stock rims - now they match the paint
5. Reus audio upgrades - phenomenal sound, and unmatched service and support
6. Chademo adapter, 25' 50A cable, various other adapters, charging cards and fobs
I'm fairly certain that item(s) 6 and other detachable items (12V accessories, window shades, organizers, other car-specific stuff) are covered under a different policy. But the rest as listed, supported by receipts, will be covered for a nominal amount, and by covered I mean reflected at receipt value (including labor) in case of a total loss.
If I remember right, Geico, about 6 months ago in that case that somebody reported (and posted to wreckedexotics.com) just accepted the receipts post-accident and added the full value of the aftermarket work before coming up with a number. Easy peasy. Call me skeptical, but I wasn't willing to leave it to chance with a new (to me) insurance company - hence the call.
Point being, if you plan to direct $10K or more into aftermarket merriment, it might be worth sorting out in advance what's covered, what's not, and how. It would be enough of a pain to have to redo everything without getting stung financially as well. Besides, for the new owners, the money saved can go toward the next $10K in expenses (extended "warranty", prepaid service, tires every couple of years, and so forth).
PS: Yes, the coat hooks and sunglasses clip from EVAnnex and the fob pockets from Abstract Ocean are nifty as well. Do consider onboard espresso - it's just... civilized. Jury's still out concerning 12V appliances, though. Probably better for a Model X. Who knew there was such a thing as a 12V crockpot. Pair that with an Engel fridge/freezer (very low draw, 1 moving part) and let your freak/gourmet flag fly!