Good evening Adam and welcome to the Events Calendar Support forum!
It looks like you are using the standalone version of Event Tickets Plus (without the calendar).
This is fine and will work perfectly.
Typically, tickets are tied to post or pages.
In fact, depending on your settings under Events -> Settings -> Tickets, you should see an “Add ticket” box in posts and pages.
If, on the other hand, you are solely interested in using them as WooCommerce products, the reason you are not seeing them in the shop is because of their default catalog visibility.
By default, this is set to “hidden”.
You could either manually change that in each ticket (directly in WooCommerce) or you could apply the following snippet in the functions.php file of your theme (without the PHP tag at the top): https://gist.github.com/jesseeproductions/5768685acc4cd48cdd81#file-tribe-woo-catalog-visible-php
Let me know how that goes.
Best regards,
Geoff B.