Although retailers are expecting a large surge of shoppers over the next few months as the holiday season gets underway, many businesses are now taking advantage of Halloween and using the spooky theme to increase their sales.

According to Internet Retailer, online merchants are creating new marketing initiatives that feature Halloween elements. Ricky's NYC, a beauty supply chain, has sent out an email to customers with tips on how to best use their products for costumes and disguises. SpencersOnline.com has launched a campaign encouraging shoppers to upload photos of them in their costumes, with a chance of winning various prizes and gifts. Additionally, other retailers have sent out Halloween-inspired emails highlighting their offerings, including free shipping and discounts, the website reports.

Brick-and-mortar retailers in Australia are boosting their sales during the Halloween season, writes The Australian. Many merchants have stocked up on costumes, candy and pumpkins, and sales are expected to increase by 25 to 30 percent during October.

"It's no longer just an American event," said Margy Osmond, CEO of the Australian National Retailers Association. "Australians love the idea of the day. It seems this is a holiday that more Australians enjoy and we expect it to continue to grow."