While building, have you ever found pieces that fit together so perfectly, you’d believe they were made for each other - despite that most likely not being the case? Here’s two examples to illustrate what I mean.
First off, this System mech armor piece (introduced for Ninjago in 2022) can be attached perfectly onto a Rahkshi leg with 2 halfpins. The armor was made over a decade after the Rahkshi leg was last used in a set.
This next one is a similar case, with the 2015 Bionicle Toa armor piece fitting nicely onto a Piraka leg. This time you don’t even need any pins, it slots directly onto the 3.18mm hole on the leg.
Both are very snug connections, they don’t wobble but don’t stress the pieces either. Do you know any other unexpected perfect connections like this?



