I have some 3M Command mini hooks holding a fake plant, they have different sizes. I was a little apprehensive using an adhesive stick-on in the viv, but the glue is covered and they do not come loose.
I first used them in the top to hold wires for LED lighting and found them to be very secure. Make sure the surface is very clean so there is no chance of a weak bond, I didn't want it to come loose and have the adhesive side open in the viv.
I have had them in the viv for about 8 months, several cleanings, they are still just as secure as when I installed them. Two are on painted wood, one on Lexan, the ones in the top for the lights are on rough wood.