This folder contains images of four compact ping-pong ball rollers I built in 2009 and 2010. A most interesting email exchange with Max Morris of the UK set me on this course in the first place, and gave me the opportunity to put into practice some ideas which had been in my mind for years. Thanks, Max! Three rollers make use of narrow-strip spirals to raise the balls, and one uses Meccano Spanners. I have also included here my version of an interesting compact roller devised by the late Les Pattison.