Thanks for the feedback!
I really do need some filters, and I thought about the possibility to cram a 2HP MMF into the tiny gab in the 3U to 1U adapter. Another random module I’ve thought about was just friends, but i find it really confusing and unintuitive…
I tested a wogglebug from a friend, but didn’t like it at all. The thing that draws me to marbles is the Turing machine style locking system and the fact that it can do all kinds of gate patterns, including the cartesian grids thing (sorry if that’s wrong). Maybe I’ll get one in a smaller size, but I don’t like fiddly tiny knobs 
Ears is a hard one to get rid off, i love this thing so much. I use it more as a controller and modulation source rather than an IO. I run multed audio from the clouds or W/ into it, and use the gate and Env. Follower to modulate the audio with itself. I also like to have it control the clock inputs of marbles, making bursts every time i touch it. If i were to remove it, id need a 1U touch interface and a 2hp env. Follower