How do I set up Mystery Science as a district vendor? Sam Clark November 06, 2020 01:42 Updated You can find a copy of our up-to-date W-9 here. If your district also needs us to complete a vendor application, please email the vendor application to us here. We'll complete it and return it to you as quickly as possible! Related articles How can I pay for my Mystery Packs? What supplies are included in a Mystery Pack? If I have a price quote, why do I need to reserve my Mystery Packs? Do I need Mystery Packs in order to teach Mystery Science? What is your refund policy for Mystery Packs? Comments 0 comments Article is closed for comments.