Warning! Taping tips ahead
I had to do this with no one as a camera man (ie - I had to tape and take pics) so hopefully I can detail this very well in text and have the pics accent it
I used a medicine bottle here, twas the only round thing I had
The concept remains the same for smaller items though.
First what you want to do is stretch the tape, relatively tight, and place it against the edge of the item. Go slow and make sure you keep it along the seam you want.
Now start on one end and tape around. What I couldn't get a pick of here is this: I use my other thumb to hold the tape in the middle (so it doesn't pull up) then holding the edge of the tape tightly with my right hand I can manipulate the tape up/down to match the seam. Basically you want to hold it on the button with one finger, and then (using your other hand) work the tape edge along. After you get a little ways, move your finger up and repeat. [I hope this step makes sense,lol]
Now go ahead and stick that end of the tape down and tear off any excess on the other end. The overlap the other edge the same way you taped down the first half.
This is how I
finish the top, you could just twist it tight (or whatever works for you keeping paint out,lol). Just take your thumb and press into one of the sides, this will fold it down. Now just do it again until you folded it all flat.
If you have any questions or something I typed doesn't make sense (which can be likely
) just let me know