Revell, 1/48. I harbored the idea of building the Century Series from the 50s and 60s. I have the 102, 105, 106, 107 (done, poorly, but done), 100 and so on. Maybe some day.
To make each build less crappy than the last one. Or, put another way, "Better than the last one, not as good as the next one!"..
I have nothing on my bench nor do I even have a bench at the moment. I’m going to have to figure out not only the what but the how. I did look at the few wonderful old kits I do have and it felt like greeting strangers because some were truly surprises to me (a U-Boat? Since when?) and some I was happy to see again after my memories of purchase drifted back.