World Famous Annual HOLIDAY EXCHANGE (Read Entire Description BEFORE Purchasing)



Our Annual Holiday Exchange is the original Social Media LIVE! unboxing interactive experience (at least we think it is! :P )This is your chance to build a custom mystery box with two goals in mind. 1.) your box will be opened via Facebook Live! (@mainstreamcomics) on Wednesday 12/20/2023 beginning at 5pm Pacific Time Zone. So the first goal is to build a box you’d be proud to receive because someone else is getting your box and you are getting theirs…so build something awesome! 2.) it’s your theme. Your choice. Tell a story. Feel free to write notes. It’s about having a community experience. Feel free to put a CGC or CBCS graded comic (or more) in your box! If you can drop our jaws with your generosity then do it! Hehe. 


Important Info & Questions:

After purchasing this item you will receive an order #. Please write your order # on the outside of your box.

Please send your mystery box to:


Mainstream Comics

7250 S Durango Dr

Suite 130-183

Las Vegas, NV 89113

Please email: with your tracking number after you’ve mailed your package. You are responsible to cover the cost to send your package. You are also responsible to package your mystery box safely. Deadline for us to have your package is 12/19/2023. Be smart and get your package to us early!

After the LIVE! Unboxing and exchange we will repackage everyone’s boxes and send them to their new homes! We collect $25 for everyone who participates because this helps cover the costs to send everyone out their new boxes.