Ah... so that's what that was for.
That and to accompany my endless (it felt like!) struggles with my 'TheCart!' flash upgrade. I acquired a full box of that 'Galaxy' themed tape that was left over after my wife made a 'Duct-tape double' for her dressmaking. Kate Bush once had a song called 'Suspended In Gaffa' which conveys much of the process.
Or contacted Lotharek to mass produce them? To his great credit, Electrotrains made this as an open hardware design after all.
Or even make them yourself! The PCB schematic CAD files are all available and I've learned its fairly trivial to have even small quantities made these days as off-cuts from larger production houses. I fully intended to do this for my own uses, but was suffering a crisis of faith at the time and backed out. I still have a handful of circuit boards though and have thought I might give this a bash again now I've got more experience in SMD soldering.
It is a very clear, clean design and I don't think any of the spares are smaller than 0805 with plenty of room around them for tack and reflow. The big CPLD is the toughest part as it has a large ground pad completely hidden underneath, so you have to use solder paste and either a careful hot-air setup or an even carefull'er toaster oven for a few minutes to get a good joint. The rest can be done via drag-soldering - even the legs on the CPLD are not all that bad once you are 100% sure you've got it properly registered against its pads, which you have to do before setting the groundpad anyway.
I have another assembly project on at the moment, but after that I think I will try and whip up my own UltimateCart. What really makes or breaks the deal is if Farnell or better yet these days RS ever get the CPLD in to local stock. Ordering from America is horrifically expensive in terms of pure delivery. The spare unit itself is pretty cheap.