Do you think that it's strange being a guy and wearing tampons?
Yes it's strange. Do you wear a tampon?
Yes, it's a super comfy thing to sport
You shouldn't insert things into your body if they're not designed for that purpose, as it can be risky.  Also, almost everyone would consider your decision to be weird, so if you don't want to stop, you should probably keep it as a secret thing that you do for fun.
I want to wear it because I'm bored and it feels exciting.
You need to find something else spice up your life. Tampons are not meant for men to wear. I'm afraid this will end up causing you a health problem.