Show me some cocktails for a Halloween-themed party, ideally gin-based.

When you're looking to craft an intriguing Halloween-themed party with a gin twist, there are some delightful options you might consider that not only capture the spooky spirit but also offer that beloved gin foundation. Topping the list is the classic Gin cocktail, which stands as a sophisticated choice with its perfect harmony of citrus and herbal notes. It's no surprise that this drink boasts a high rating, given how beautifully it blends the aromatic Boker's bitters and a gentle sweetness from sugar syrup, all enlivened by orange liqueur. It's a timeless drink with a modern flair, sure to attract a crowd that appreciates the art of mixology at your Halloween bash.

Another intriguing gin-based option is the Gin Gin Mule. This cocktail brings a refreshing twist to your party, combining the herbal undertones of dry gin with a spicy kick from ginger and the tangy zest of lime juice. Topped with fizzy ginger beer and a dash of Angostura Bitters, it offers a lively balance of sweet and spice — something that can be quite an invigorating addition to the party amidst other themed drinks. Both cocktails bring their own unique profiles to the table — the elegant simplicity of the Gin and the zestful kick of the Gin Gin Mule — making them both excellent choices to ensure your Halloween event is memorable and full of flavor.