If you go to jackbox.tv and look to the top-left corner, you should see a "hamburger" icon that looks like a stack of lines. If you click that icon, you’ll see a button that says "Past Games", which will have a list of all your most recent Jackbox Games galleries! From here you can buy merch, as well as share to social media.
Please note: Past Game data is saved via cookies in the browser you were using while playing, so you will need to be on the same device. If you have cookies disabled, have recently cleared them, or are not on the same device, your Past Games will not be visible. Game galleries are generated when you complete a game, so if you didn't finish playing, it may not display. Additionally, galleries are not saved indefinitely, so if the game you're looking for is older than a year, you may not be able to find it.