We posted a three-part series on how to make cam clamp very simply by hand for those who feel uncomfortable using machine. The hand tool methods we show are highly effective but whether you do this by hand or machine the patterns can be adapted if skill development is not your forte.
If I remember rightly each clamp costs less than £1 depending on where you buy your materials and whether you use identical parts or not. Set up is simple enough and you end up with some very professional looking clamps you can work with and be proud of showing. Another feature of this series of course is the safety element and if you really are intimidated by the machines or have no experience with them or simply have no access to them then these methods give you exactly what you need to stay off of the conveyor belt.
Here is a short introduction to the series.