Thank you for inviting me. I'll repay with a list of (semi) obscure psych gems that I love:
1) Kaleidoscope (the English one) - Tangerine Dream
2) Ame Son - Catalyse
3) HP Lovecraft - II
4) United States of America - (the only, unfortunately, and beautiful album they made. The subsequent one under the name Joe Byrd & the Field Hippies is nice but not at this level, for me)
5) Fifth Foot Hose - Cauldron
6) The Open Mind - I
7) Flat Earth Society - Waleeco
8) Twink - Think Pink
and two a bit more recent
9) Black Moth Super Rainbow - Start a People
10) Soft Hearted Scientists - Uncanny Tales from the Everiday Undergrowth
Did I pass the test? Just kidding, if you don't know any of these, I highly recommend them and I look forward to further input.