Similar to this question I am interested in combining Duplo Lego with Mega Bloks. I want to have full compatibility, i.e. being able to put Duplo on top of Mega Bloks, which requires some type of adapter.
I am looking for BUYABLE adapter pieces (not self-made via 3dprinter or such).
Does anyone know a source?
I found that Lego has a (discontinued) system called "Lego Primo" with similar round studs. It does have adapter blocks for Duplo (marked with red rectangle):
Can anyone confirm that these do / do not fit the Mega Bloks studs?
Although they are discontinued, they can still be bought used. So if they fit it would be an option for me.
- There is an unconventional type of adapter being sold on Ebay (seems to be just a single offer, used):
Has anyone ever seen these somehwere else? Maybe even in real life? They do not look 3d-printed, they look injection molded (like Lego and Mega Bloks). So there might be someone producing them (or having produced them) commercially...