This funny design dresses up a cartoon dinosaur as a little leprechaun, complete with a green jacket and a tall green top hat! He stands facing you while holding two large beers.

Epic icons mash-up for this fun St. Patrick's Day t-shirt design. A happy unicorn wearing golden sunglasses gleefully rides on the back of a fierce dinosaur who is wearing a leprechaun hat and holding a four-leaf clover. Both characters stand before a rainbow.

This cute cartoon tank top features a dinosaur looking wistfully at a mug of beer. Tiny arms = no beer for dino. Sad.

This shirt has a cartoon triceratops laying upside down with a funny caption: Drunkensaurus, along with a pronunciation guide.

Keep the pinchers away with this funny dinosaur shirt for St. Patrick's Day. It features an image of dinosaur with long pinching arm extentions -- he needs them with his tiny arms!

This is an epic illustration of a jolly leprechaun holding an oversized mug of beer while riding a fierce looking dinosaur.

This t-shirt has a fun over-the-top design featuring adorable kittens chasing and dreaming about shamrocks. This epic St. Patrick's Day t-shirt was our overall best-selling item of all 2017.

Looks like people couldn't get enough of kittens and St. Patrick's Day last year. This is our second best-selling shirt -- it shows a kitten dressed up as a leprechaun riding a kitten dressed up as a unicorn. There is also a rainbow, the moon, shamrocks, and golden coins.

This is a simple and elegant shirt, a comfortable cotton blend with a distressed shamrock design at the hip. It's a women's cut with a V neck.

Here's another stylish women's cut shirt. This is a black v-neck in a cotton/poly blend with an oversized novelty print.

This novelty shirt has an image of Trump toasting with a large green beer and the caption "Make St. Patrick's Day Great Again."

This is a fun off-the-shoulder oversized sweatshirt. The black top is designed to be worn off the shoulder or loose around both if preferred. The design is a large print of the word IRISH along with hearts and a shamrock.

Rounding out our top-selling list of St. Patrick's Day t-shirts is this white and green raglan with a distressed print of an oversized shamrock.

This is a vinyl tablecloth with a flannel backing for a comfortable feel and no-slip usage. The tablecloth is white with green shamrocks in different sizes. It's easy to clean and reusable!

Dress up your table with this stylish table runner in green. The runner has a dark green border and is decorated with country-style patchwork shamrocks.

This is a pretty table runner with a delicate look. The piece is embroidered and has cut-out details throughout.

This is another pretty piece with an ivory background and green Irish details. The square cloth has a pretty pattern of shamrocks around the border and in the center.

The runner version of the above square table linen was another best seller. This embroidered runner has an intricate border with pretty cutouts.

Need a mascot, drinking buddy, or wingman for St. Patrick's Day funtimes? This fun little friend is just who you're looking for!

This was a top seller for the Irish holiday. The uniquely shaped balloon has a shiny holographic repeating shamrock pattern.

Novelty can coolers are popular during the beer-drinking holiday. These with their faux-profane message were the biggest sellers in 2017.

After those can coolers, this bottle cozy or koozie was the next biggest seller. This little sweater for beer bottles has a green shamrock along with a simple white and orange stripe pattern.

This is a novelty cauldron that doubles as a perfect pot of gold at the end of the rainbow. Use this to make your own St. Patrick's Day holiday decorations.

This complete leprechaun costume for kids was our overall best-selling St. Patrick's Day costume last year. The outfit includes shirt and pants with matching vest. You'll also get the top hat and bow tie.

This fun novelty head-piece lights up! The headband has flowing "dreadlocks" in green that include LED lights inside. You can also get this piece in other colors -- but for St. Patrick's Day, you'll want green!

With these green socks you can claim to be going green without going overboard. These are green socks made of a cotton/nylon blend and include a white pattern of shamrocks.

Stay warm and keep it fun with this novelty Irish beanie hat. The hat has earflaps and a fun mohawk fringe. The hat is green with a four leaf clover and white & orange Irish stripes.

This is a black loop scarf with a green shamrock repeating pattern. The scarf has a luxe satin feel.

Another scarf made our top list! This is a stylish scarf with a shamrock checkerboard pattern in white and green.

These are adult-sized socks that reach up to the knee. They are light green with a repeating pattern of dark green shamrocks.