Step 4: Step 3 - Spray-Painting
My spray-paint was some strong stuff it made me so drowsy for about 30 minutes, probably best if you cover your face or use some sort of mask.
Follow the instructions from the spray can because spraying distances etc. vary.
I managed to cover my Cup with the paint after about 4 layers but that was mostly because McDonalds cups are so colourful. Doing a layer then waiting for it to dry for about 5 minutes is by far the best method otherwise it will become runny and the paint will not have a good finish.