I recently had one of my drawer lock things break in the kitchen. Rather than spend five minutes looking through the parts manual and order a set, I actually made use of my 3D printer to make a replacement, rather than use it to make "useless" things.
I've posted it up on Thingiverse, if anyone needs it.
It fits all the drawers on our 2007 Itasca Horizon 40KD, so if another one breaks, I spend less than a nickel to print a new one.
Hope this helps someone else!