Tollyboy locks are mostly 7 pin radial locks there are some 8 pin radial locks, there is one 13 pin radial lock where the pins are set in a double row with cuts on the inside and out side of the key.
On many of them a radial pick will certainly not work easily as the bottom pins are of variable length and the springs are of differing strengths so just bottoming out the tool will mostly not work.
Most locks have a spool pin(s) and/or serrated pin(s) to give a false set.
Some special locks also have trap pins in them. Try to pick one of them and don't get it exactly right and you will have a lock that can't be turned by anything including the original keys.
There are some odd ball belts out there with very bulky Medico locks, I wouldn't think they would be pickable even by most locksmiths.
There is / was some experimental work with Galaxy locks from the Australian lock company. I think they are practically unpickable by anyone.