A plus about this project is that it'll cost you nothing at all- all you need is someone else's markers, and your hands.
*This will only work with markers that have colour coded caps but no colour indication anywhere else!
(Unlike the picture(s) because I don't actually have any markers like this. Suggested marker: Sharpie)
*I'm going to make this instructable fairly short and simple as it is a simple trick... and I've got homework*
Step 1: Choose Your Victim
Step 2: Get Some Time...
Step 3: Switch the Caps!
Step 4: Return the Markers
*Its better if the markers have the same colour inside once you open the cap because once the owner tries to put them back on properly, they might just be mad if they have to test each marker's colour instead of simply matching the inside colour to the cap.
(In the picture, notice how the correct colour is also located under the cap's place but not at the ends. Also, the markers don't have to be Sharpie markers, just markers that fit the descriptions talked about throughout the project.)
Enjoy pulling off this trick!
Please leave comments below!