siriusly riddikulus cousins
bringing your favorite fandoms to life
At Siriusly Riddikulus Cousins, we bring your favorite fandoms to life with custom t-shirts, stickers, and notepads. Each design is made with love and a sprinkle of magic to capture the spirit of your beloved characters and themes. Stand out from the crowd with our unique collection! Dive into our ever-expanding world of fandom-inspired items, all crafted to celebrate your passion for the extraordinary.
Explore our ever-growing Etsy collection of fan-tastic products — new items added all the time! Check it out here: https://siriuslyriddikulusco.etsy.com
we're happy you are here
Meet Wendy and Amy, the imaginative minds and dedicated cousins running the show.
We are ready to bring your favorite fandoms to life through custom creations. Explore our website and discover a mix of fandom inspired shirts and stickers. Whether you're a Potterhead, Swiftie, or love those Bat Boys, we've got unique items that help celebrate your love for the extraordinary.
Follow us on social media for behind-the-scenes glimpses, special offers, and updates on new arrivals. We love connecting with fellow fans and sharing the joy!
Have a special request or a fandom we haven't covered yet? Drop us a message - we love a good challenge!
Looking for a shirt for a special occasion like birthdays, concerts, vacations, or any other event? We can help you design your shirt from scratch - the possibilities are endless!
siriusly loving your favorite fandoms
custom fandom apparel
Indulge in our exclusive collection of custom fandom shirts that showcase your dedication to iconic characters, worlds, and your favorite celebrities.
transform your everyday
Add a personal touch to your daily tasks with our unique notepads and handcrafted stickers featuring designs inspired by popular fandoms.
personalized designs for you
Get creative and let us design your shirt for any event with custom orders, turning your special occasions into unforgettable celebrations!
explore our fandom collections
Whether you are looking for designs connected to your BookTok boyfriends, favorite song lyrics, your wish to be a wizard or more, we have you covered. We are always making additions to our collections and want to hear ideas that you have, too!
in our booktok era
in our swiftie era
in our magical era
in our productive era
Brighten up your office with our notepad collection, perfect for fans of Taylor Swift, Hogwarts, Fourth Wing, ACOTAR, TikTok trends, and more! Whether you're jotting down song lyrics, magical spells, dragon-riding schedules, or viral dance challenges, our notepads and to-do lists will add a splash of fun to every task.
in my custom era
Create Your Custom Shirt with Siriusly Riddikulus Cousins
Ready to make something uniquely yours? Let’s go! Drop us an email at siriuslyriddikuluscousins@gmail.com and we will start designing!
First, pick your shirt style, color, and size. Next, choose a theme that screams "us." Add your favorite font and sprinkle in your names, dates, or inside jokes. Feeling extra? Throw in a graphic or two.
Preview your masterpiece, tweak it to perfection, and hit the order button. We’ll whip up your custom creations and ship them straight to your doorstep faster than you can say "Siriusly Riddikulus!"
Get ready to rock those custom shirts and make memories as unforgettable as your new outfits. Thanks for choosing us to add a dash of magic to your wardrobe!
don't be a stranger!
Have a question, an idea, or perhaps a special request for a fandom we haven't covered yet? Drop us a message - we love to connect over a good challenge!
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