Nord Games does some solid RPG Kickstarters. Even though they are generally for 5th edition, the cover concepts that convert easily to OSR rulesets or even - dare I say it - Pathfinder.
The Treacherous Traps for 5th Edition! Kickstarter looks to be a good fit for OSR gamers DESPITE having 5th Edition in its title ;)
Treacherous Traps is an incredible resource for game masters who are looking to get more out of their dungeon design. The book contains two hundred and fifty pre-built traps ranging in level and severity so that you can always find the perfect trap for your party.
There is also a chapter containing a random trap generator written, in part, by the legendary Steve Winter. This chapter contains fifty trap triggers, and fifty trap effects that, when combined, create up to twenty-five hundred different combinations.
Although the content in this book and collection of card decks is written for 5th Edition D&D, the trap concepts and mechanics can be easily adapted for use with other editions of D&D as well as other fantasy themed tabletop RPGs. (emphasis mine)
There are lots of options for backing. Single deck for 12 bucks (50 traps), 16 bucks for a 100 card random trap generator deck (very tempting), 20 for the book in PDF, 40 for the book in hardcover - and levels for multiple decks and such. I'm thinking the random trap generator deck for me.