When it comes to clothing, one of my favorite things to buy is t-shirts. A lot of indie t-shirt makers are creating and selling unique tees on Amazon. You can find a tee to fit pretty much any theme and/or artistic aesthetic. You can also find tees made for special occasions, such as this novelty baby shower tee to celebrate having twins. A lot of couples have showers where both mom and dad attend, so this tee could be fun for exactly that type of party.
The same t-shirt designer has created a couple of other fun t-shirts for women that would make one-of-a-kind gifts. If you like sweets, there's a "sugar obsessed" t-shirt with a fun typographical design. There's also a "happiness is calling" t-shirt which features a simple, upbeat message in a design that's pleasing to the eye.
Especially if you have Amazon Prime, it doesn't cost much to add gifts like these creative t-shirts to your order. With such fast shipping, your t-shirts or other fun clothing items can be at your door in no time at all.