I have some reptile eggs I would like to try to hatch!

You need to set up your eggs right away before they dry out. Keep them in a closed container until you prepare the container I am going to describe to you. Mix equal volumes of Vermiculite from a gardening center, not dirt or sand, and water together as a substrate for the eggs. This should result in moist, but not wet, vermiculite. Put this into a large flat Tupperware container a couple of inches deep, then make little depressions so that each egg will be half-submerged- half in full contact with the vermiculite, half out in the air. There should be at least a quarter inch if not more between the eggs so they don't touch, and if you can, place them on the vermiculite without rotating them from how you have them now. If they are stuck together, I would try a modification of the same technique, burying the bottom ones as above, and leaving the rest sticking out over the Vermiculite. Close the container. Moisture will condense on the inside, but that is okay.

If, over time (days, weeks), no moisture condenses, and then eggs start to dent, try adding a little more water. Keep the container closed most of the time, but periodically check to see if extensive fuzzy mold is forming on any eggs. If this happens, especially if the eggs begin to dent unlike their neighbors, throw those particular eggs away, keeping the rest. One more detail. The eggs do best around 80 degrees. If they are kept too cold, then they don't develop as fast and that gives pathogens more time to get 'em. Too hot and they die right away, so keep them out of the sun. It's better for them to be too cool than too hot. The babies should hatch in September some time, but that depends on a variety of factors.