Hello,
01. Here are a few ways to do it:
Using Variable Products
If the accessories have fixed prices, you can create product variations with different price options.
Using Frequently Bought Together
You can add related accessories under “Frequently Bought Together” and display them on the product page.https://xtemos.com/docs-topic/frequently-bought-together/
If you want more specific requirements, you can achieve this using the Custom Price for WooCommerce plugin. This plugin allows customers to enter a custom price for a product, https://wordpress.org/plugins/custom-price-for-woocommerce/
02. WoodMart has a built-in Product Dynamic Discounts feature that allows you to set up pricing rules based on quantity.
You can configure different prices for different quantity ranges and display a pricing table to inform customers about the discounts.
Please follow this guide:
https://xtemos.com/docs-topic/dynamic-discounts/
03. Navigate to Theme Settings > General > Promo Popup > Enable and customize the popup content with your promotion details: https://prnt.sc/4au7IHsQ5gFp
Also, For a Banner:
Navigate to Theme Settings > General > Header Banner
Enable the header banner
Customize the content with your promotion details. This will allow you to showcase promotional messages effectively.
https://monosnap.com/file/mGmrhwAu9TFE2XLugJPDLivdR5EKZH
Best Regards,