@Lil Dab , for function only… the initial cup with plant is obvious… the two outer Pepsi cups are for light blocking only. I was going to mount them in the stand as is but discovered I cut those holes to fit the blue solo… which is slightly wider on the top than a regular solo. So the outer is for fitment, then two light blockers (one not necessary now) and inner pot.
@leaff , the stand is a common microphone stand and platform is a blade from a dead ceiling fan to be replaced in the spring. I just cut it down to fit my needs. Thought about making another crossbar so it could hold 4 cups