If possible, try to find lemons that are organic or a bit more dull in appearance. Some lemons have a fake wax coating on the outside that you don’t really want to eat. I’ve used these to make candied peel before, but it involves a lot of scrubbing with a sponge to get that outer coating off. It’s doable, but there are always lemons out there that don’t have this wax layer. Trust me, you’ll be able to tell which ones are waxy and which aren’t!
If for any reason you need more drizzle, I tend to use the juice of 1 lemon per 1/2 cup of powdered sugar to get my preferred consistency and flavor. You can always add more of either depending on your personal preference on thickness and sweetness.