I got the idea to make my self a dip-belt from a fellow blogger, Schwinners (http://warriortrainingcouk.blogspot.com/), so I made one and filmed the proccess:
I wanted to test out dips with the weight hanging from my neck for a more pec-dominant dip.
My new dip-belt works great for dips and chinups but I personally did not like to have 40+ kg from my neck. When I am going to use this exercise I will do it with less weight and more volume.
Here is a video of me using my belt in a strength session:
Now you do not have any excuses not to do weighted dips or chins, just make your own belt!