One of my other cameras is a Panasonic Lumix DMC-G1 micro 4/3 mirrorless SLR, which I use for testing lenses in weird fittings that won't adapt to a normal SLR - for example, I've tested some Leica-fit lenses, Pentax 110 lenses, etc. But since it's a fun camera I've decided to play around with it for more creative purposes, and I've just ordered a Fotga Nikon to Micro 4/3 adapter that incorporates a rudimentary tilt mechanism. Shipping from China so may take a while to arrive, but it only cost £18.25 including postage which won't break the bank, and I think it's worth a try - at worst I can probably sell it on for a small loss. I'll post photos when I have it. I think results with my 8mm lens might be interesting!
https://www.ebay.co....tm/381300682156
There are similar gizmos around for other mirrorless cameras starting around the same price, of course. e.g.
For Nex
https://www.ebay.co....tm/303663980561
For Nex (Tilt and shift - more expensive)
https://www.ebay.co....tm/272200656374