WooCommerce Lottery extends popular WooCommerce plugin with lottery / competition / lucky draw features. WordPress competitions, lotteries and draws have never been easier!
Demo: https://codecanyon.net/item/woocommerce-lottery-wordpress-prizes-and-lotteries/15075983
Voucher Wheel is a powerful tool to engage your customers by giving them a chance to win a prize by spinning a lucky wheel. Developed in Python, Django and jаvascript, Voucher Wheel is fully customisable in an admin portal.
Demo: https://codecanyon.net/item/voucher-wheel-engage-and-give-prizes-to-your-customers/33951156