Mailing out bridesmaid boxes — USPS shipping advice

I'd love some advice from those of you who had to mail bridesmaid boxes. And before we get into it. This involves trying to ship alcohol and yes I know it is illegal to mail alcohol through the USPS and pretty much all US carriers. I'm not asking for legality, and I'm aware of the risks. Please refrain from hate or lectures, I'm not trying to ask specifically how to get away with it, I just want to know if anyone's done it or if you have any tips or advice for other options.

Only 2 of my bridesmaids I have to mail their boxes to. I'm doing a lemon theme because my soon to be last name is Limone (which is literally Italian for lemon). My girls are each getting a mini Prosecco bottle and a limoncello shooter in their boxes to make a limoncello spritz. I am not even gonna attempt to sneak a mini Prosecco bottle in the mail, that's just too risky and a bit stupid. They're too big + carbonation. So for the ones I have to mail, I'll probably send a $15 gift card to whatever liquor store chain they have in their area so they can get their own Prosecco.

But what about at least putting the limoncello in there? I know you'll say "what's the point if you're putting a liquor store gift card in there anyway", but I only ask cause I make my own limoncello, and I particularly want to use that since it's cute/more personable plus I have my own custom label I drew myself. Has anyone ever done something like that and had any issues? Or am I better off just working it into the gift card instead? Or any other suggestions would be great!

I'd also like general advice on shipping bridesmaid boxes in general. What's the best carrier? Should I stick with USPS or do fedex or UPS? My gift boxes also include: a custom wine glass, mini candle, and matchbox. So as you can imagine I'm very nervous and gonna be wrapping this thing in a bajillion layers of bubble wrap because those wine glasses weren't cheap 😭