Amongst their 100+ site range,
LionDollars have a few little diamonds in the obscure niche front.
Have a look at these:
FuckBuddySeeker goes straight to the heart of what online daters are REALLY after - GETTING LAID !!
AssToMouthHumper gives an especially hardcore approach to the ATM niche.
BizarreSexTapes covers LOADS of B&D, Latex & Leather and other similar fetish niches.
DutchPeeFest goes deep into European pissing and watersports.
GaperSex well represents the "big hole" niche.
GiantDickSuckers looks at the huge dick niche from the oral angle brilliantly !!
PreggoMILF twists the MILF/Mature and pregant niches into one.
And there are heaps more with awesome content, and with new sites generall released weekly, they never get stale.
Over 10000 un-watermarked promo pics, in convenient sets all for zip download and over 20000 hosted galleries.
They literally have something for everyone !