Large piece of foam padding (same note as above - yours should match your plywood dimensions & anywhere from 1» to 3» thick will do the trick. (loveandspecs.com)
Apart from its size and it's weight, Redmi Note 5 and Redmi Note 5 Pro are exactly the same (gizcentral.com)
I grew up eating them in Boston and they hit the exact same notes I was looking for. (thelemonbowl.com)