Mike Jolley (a11n)

This simple extension allows you to add a gift wrap option to your products with optional price.
WooCommerce > Settings lets you set up the default gift-wrappable status per-product and cost. These costs can be overridden per-product too.
If the customer adds gift wrap, it is shown in cart + orders, and adds your defined cost to the item cost too.
If you’d like to contribute to the plugin you can find it on GitHub: <a href="https://github.com/mikejolley/woocommerce-product-gift-wrap" rel="nofollow ugc">https://github.com/mikejolley/woocommerce-product-gift-wrap</a>

WooCommerce Product Gift Wrap

Add an option to your WooCommerce products to enable gift wrapping. Optionally charge a fee. For WooCommerce 2.0 +

raintech357

This plugin allows you to offer a gift wrapping service to your customers on the checkout page. When a customer selects the gift wrap option, a fee is added to their order.

RT Gift Wrap for WooCommerce

Adds a gift wrap option to products in your WooCommerce store.

WooCommerce Product Gift Wrap vs RT Gift Wrap for WooCommerce