A jig you can fashion n your shop that allows you to make pocket holes without a commercial jig and special hardware.
Pocket-Hole Joinery
Kreg 720 Pocket Hole Jig-Pro KPHJ720PRO - Acme Tools, pocket hole jig
The Ultimate Guide to Pocket Holes - The Handyman's Daughter
How to Use a Kreg Pocket Hole Jig 320 (Free Guide + Video)
How to Use a Kreg Pocket Hole Jig – Love & Renovations
Pocket Hole Jig Station. DIY. Cheap and Simple : 9 Steps (with Pictures) - Instructables
Kreg K4 Pocket Hole Jig - US Pocket Hole Brand - Adjustable Jig for Strong Joints - Create Perfect
DIY Pocket Hole Jig (Easiest Way Possible) : 18 Steps - Instructables
How To Make A Pocket Hole Jig