Second: The eggs should remain in a clump. Do Not Try to Separate Them.
Barely moist potting soil should be fine. Put the soil in a container large enough for the whole clump with room to spare. Hollow out the center a bit, and then pick up the entire clump, leaving the entire clump in the same exact position as when you took it from the snake. Try not to turn the clump. Place it in the depression you made, and push the soil towards the egg until it is 1/2 covered for the moment.
Tomorrow as soon as you can get sphagnum, perlite, or vermiculite, and set up the incubation container. If you use vermiculite get it just damp enough so that when you squeeze some in your fist NO water leaks out, but whne you open your hand the vermiculite retains the shape of your closed fist. Follow the same procedure as mentioned above for the soil. The eggs might be a bit dirty from your soil, but that's okay, they don't mind a little smudge of dirt here and there.
They should be fine but I wouldn't let it go more than 24 hours in the soil if you can help it.
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~Sasheena