Howdy,
Some of these may have been posted before, but here goes:
Bicycle side car:
http://www.vintageprojects.com/kids/bike-trailer.pdf
Motorized Bike:
Build a Motorized Bike Plans
Made-From-Scratch motorcycle:
Old School Mighty Mini Chopper Plans
DIY Shop tools:
Build Your Own Lathe, Milling Machine and Attachments
MarkV
Some of these may have been posted before, but here goes:
Bicycle side car:
http://www.vintageprojects.com/kids/bike-trailer.pdf
Motorized Bike:
Build a Motorized Bike Plans
Made-From-Scratch motorcycle:
Old School Mighty Mini Chopper Plans
DIY Shop tools:
Build Your Own Lathe, Milling Machine and Attachments
MarkV
