Originally Posted by
darthbimmer
Many wineries and wine shops sell cases and padding suitable for shipping. For 8 bottles you might consider shipping instead of checked luggage.
With international trips it won't work.
Originally Posted by
darthbimmer
Lighter-duty carrying cases can be packed into a checked bag, perhaps with extra padding. On several occasions I've carried bottles in my checked suitcase by wrapping them with shirts, bubble wrap, towels, etc.
After doing some research seems that do-your-own like the one described
here is a real alternative to several hundred dollar case.