Go to the nearest fast food place with a diaper on and get as many of these things as you can.
-Ketchup
-Mayonnaise
-Dressing
-Syrup
-Hot Sauce(not too much)
-Butter
-Ice Cream
-Any drink they have(just not water)
-Any fruit they have
Then go into a bathroom(or secluded area) and dump all of them into your diaper. Walk around outside for a good thirty minutes.
You said you had a lot of time on your hands. If you want me to add on to this send me a picture on kik of the result and I'll make this longer.
You'll just have to wait around in a messy diaper until I responded.