>>4345077They were a limited edition giveaway at restaurants temporarily hosting a Black Lagoon theme in Japan last summer. You might be able to find one if you look around for a while, I bought mine off of EBay around the time they were going, and I keep her on my bedside table, she makes me smile.
I don't see this specific chibi one listed on EBay right now, but there are a few examples of one of her acrylic stands up right now, and you MIGHT be able to find an example on other websites.
I see a listing for it on JP Amazon, but I don't know if it'll ship to where you live, says it won't ship to mine. Perhaps if you knew someone in Japan you could pay them to buy it and ship it for you, or maybe some other JP sites might have one.