|The following is based on Fallout: New Vegas cut content and has not been confirmed by canon sources.|
Radscorpion eggs are presumably the eggs of radscorpions. They are similar in appearance to a number of other "egg" items found in the Mojave Wasteland, including deathclaw eggs and mantis eggs, with a different color scheme.
Unlike other "egg" items, radscorpion eggs have a very low weight-to-value ratio, with a weight and value identical to large whiskey bottles. Whether this reflects the commonness of radscorpions or is simply a portion of the item which was not fully implemented is unclear.
Although not normally obtainable within Fallout: New Vegas, radscorpion eggs are still referenced by the quest Bleed Me Dry, and can be used to complete the "Obtain Radscorpion Eggs" portion of that quest if the player is somehow able to obtain 12 of them.