Nice , better then a sock over the exhaust vent tube!!!!
Try cat litter instead of water, gives the project weight and avoids spills, drys the air some and bacteria.
I have used the foam trays from the butcher/meat dept. Writing on the tray key info ie item/SN, front/back, top/bottom, left/right and place the screw into the foam as I take them off. I have also taken a HBF mag tray with the bowl flatten under the foam tray.