If you can get another one i am unsure of how where. Get a pokemon with compound eyes ability lvl.
For the lucky egg simply use and set yourself up to gain double xp for the next 30 minutes.
How to get more lucky eggs in pokemon x. For pokemon x on the 3ds a gamefaqs message board topic titled when do you get the lucky egg. You can only get one lucky egg from courmine city currently. Here s the best way you can farm for lucky eggs other items.
You can get a lucky egg in the hotel in coumarine city you can get more later in the game stealing them off pokemon in friend safari. There is one available in the coumarine city hotel but if you want more than one you ll have to start battling some chanseys. Alternatively you can buy lucky eggs with pokécoins in the pokémon go shop.
Community answer the only way to gain more lucky eggs without trading is by encountering wild pokemon that are holding them. 2 scatterbug is just as good as higher level.