This is something I only recently learned about. A 1976 DC stamp set made by Celebrity Stamps, which includes a handful of Rogues. There were actually six sets (Flash, Supervillains, Batman, Captain Marvel, Wonder Woman, and Superman), and one big album for the stamps to go in.
These were simply collectibles, not actual stamps for mailing, but they’re very neat. Some of the art is clearly taken directly from old comics and promotional art, and some might be original (or at least I don’t recognize it). There was also a Marvel set.
I don’t own this (I’d like to), but it seems likely that anyone seeking to purchase it will have to spend a fair bit of money.
This 2013 book lists all the hero and villain pets in the DC Super-Pets universe. Many appear in the Super-Pets series of books, but I don’t think all of them do — for instance, Captains Cold and Boomerang and their pets have entries in this encyclopedia, but as far as I know they haven’t yet appeared in any books. Professor Zoom and his newts appear in their own book, however, as do Gorilla Grodd and his pet monkey.
The art is absolutely fun and adorable, and the creators clearly had fun inventing all these pets. It’s very kid-friendly and overall quite cute, and still readily available for sale.
(You can see the entries for the Rogues and their pets here.)
From 1986, this villain-centric RPG book contains character bios and scenarios for the characters to play. The premise is about Goldface gathering villains — including several Rogues, but not limited to them — to become the crime boss of Central City. It also contains maps of Central City, and while they can’t really be considered canon, they’re an interesting bit of detail for fans.
It’s a rare piece of memorabilia with Golden Glider in it, which makes it particularly noteworthy. And there’s some original art by Carmine Infantino (he did the cover and a little bit of interior artwork), which is also of note.
This casino-style slots game, titled The Flash: Velocity, can be played at various gambling sites online. It’s not strictly memorabilia, but games fall under the umbrella of Rogue-related merchandise.
This children’s book with colour illustrations was published in 2003, and depicts the Justice League battling a scheme by Mirror Master, Captain Cold and Captain Boomerang.
It also exists as a black and white activity book for colouring and games.
This officially-licenced Super Friends shirt was made by Trunk Ltd in about 2011. It’s deliberately distressed (faded) to give it a vintage look.
This 2013 book is different from the other Capstone DC books I’ve seen; the book is longer and clearly aimed at a slightly older audience (though it’s still for children). The story is about Batman going undercover as Matches Malone to investigate a supervillain convention. Though the Batvillains are naturally the most prominent, the Rogues are in it a fair bit.
The book is mostly text, with some illustrations. You can see one of the art pages here.
This dual-sided licenced shirt (showing the front and back) came out in 2012. It features Alex Ross’ villains art from the Justice series. It was formerly sold at Hot Topic, but now appears to be out of stock.
There’s another black shirt for sale these days with the same front, but it doesn’t seem to have an image on the back (and if so, Cold isn’t on it). So be careful if you buy online.
These two cards (showing the front and back) are from the 2007 DC Legacy set by Rittenhouse. The cards show the characters’ early Silver Age selves and also their modern look, but although the Reverse-Flash card says it’s Eobard Thawne, the modern image actually depicts Zoom.
This set also had randomly packed hand-drawn sketchcards included, and I’ve seen some Captain Colds and Professor Zooms. But they’re not officially counted on checklists, and I don’t know how many there ever were.
These cards are from a game called Top Trumps, which is apparently popular in Europe (it seems to be rare to non-existent in North America). There are actually a whole bunch of Top Trumps sets, based around varied themes such as characters from TV shows and movies, British celebrities, teen bands, various animals, and dinosaurs. The cards have different stats, and the card/player with the best stats wins.
The DC version of the game was first released in 2005, and includes Captain Cold and Professor Zoom. There was another set without Rogues in 2006, and a re-release without Rogues a few years after that.
This is literally the only image I’ve ever been able to find of these cards; I don’t have a set of my own.