Custom Amount User Inpu

Hi Guys,

I’m trying to add an extra field on check out where users can add a random amount that should be included on the order, this might be extra shipping the price of a custom product or anything at all. It would also be useful to be able to add a another field where the user adds a title/description for the charge. Let me know if you guys have an idea on how to accomplish this.

Thanks in advance!

https://wordpress.org/plugins/woocommerce/