When you want to go cheap, you’d better be able to build your own devices. For most photographers, a tilt-shit lens is often too expensive for something that you’ll nearly never use. So, why not build your own tilt-shift lens from cheap plumbing parts?
Bhautik Joshi did exactly that. $10 for the whole project, including the lens mount, plus a manual focus lens (less than $50 on will open the doors to architecture and special effects only available to tilt-shift. If you accept quality limited by your ability with tools and crafts.