Train works really well. I only had issues finding magnets and pin for them. Was a lot of fun to print! For magnets, "8mm x 3mm with Hole ( 3mm)" was pretty easy to find on US amazon and fits well. I used this listing specifically: https://www.amazon.com/dp/B09LVMFLXH For the pins, searching for 7/16" upholstery nails was good for US amazon. Specifically used this listing: https://www.amazon.com/dp/B00D12EIVQ