Spreashirt offers and coupons

Hi Thimo,
This is not really support, but a suggestion / idea.
I regularly receive emails from spreadshirt with discounts offers and coupons for reduced shipping and costs.
It would be great if there was a way to add the offer to my site so that visitors could benefit from the savings.
Maybe via an [offer] shortcode that could added above the spreadplugin shortcode or in a sidebar widget. It could then be configured in WordPress with a few fields, offer-start-date, offer-end-date, box-border / box-color / text / text-color / coupon-code (basic styling) etc. I don’t really know how it should work.
just an idea! (I’m sure you have more than enough on your plate already).
Steve

https://wordpress.org/plugins/wp-spreadplugin/