If you are trying to buy special viewing glasses for Monday's total solar eclipse, it might be more difficult than you imagined.

Many retailers are sold out, and you shouldn't count on them restocking anytime soon.

However, if you're still keeping an eye out for some, here are your best options:

1) Buy a pair from a brick-and-mortar retailer that still has them

According to the American Astronomical Society, stores such as 7-Eleven, Kroger, Walmart and Lowe's still may have some if you want to try your luck.

2) Purchase a pair from Amazon

Amazon still has some, but if you want them, it'll cost you an arm and a leg — prices range from $34.99 to upwards of $500 (without shipping).

3) Go to an offical NASA viewing location and get a free pair.

NASA has distributed more than 1.5 million ISO-compliant safe solar eclipse glasses to its officially designated viewing locations. Go to NASA's website to find out where official viewing spots are located. Keep in mind, some of these viewing events require tickets or preregistration.

4) Get a pair from a library

Some libraries are hosting viewings and distributing free glasses. Because of the high demand, though, many have already run out. Check this map and contact a library branch in your area to see if they may have a pair.

5) Make a pinhole projector

Forget the hassle of trying to track down a pair of eclipse viewing glasses by making your own pinhole projector. All you need is a piece of cardboard and a piece of paper to make one. You can view instructions here.

6) Use other household options as pinhole projectors

To safely view the eclipse, all you need is for the light to pass through a small hole. An item such as a colander or pasta strainer will work if you just make sure you have something to serve as a screen.

7) Get them for $1

Good deal, right? Wrong — they may be going for as low as $1 on eBay, but these glasses are shipping from China, and the earliest you'll get them is September. Maybe next eclipse?

Whatever your option, remember that safety is first. Never stare directly at the sun, including the eclipse. For more information on viewing the eclipse safely, go to our special section on the U.S. solar eclipse of 2017.