I cannot remember who was it that, during the challenge, was messing around with a Swiss memory, but that stuck with me and gave me an idea...
I also wanted to get my dual USB+OTG flash drive into a SAK.
I finally got my hands on a 128mb used Swiss memory, and got working on it.
First part is done (first 3 pictures).
Next step will be to take it apart, and combine it with the 64GB Vic slim flash drive, I already had (last picture).
I'll put an update once it's done.
Sent from my Redmi Note 5