Please check out the AITOC Custom Product Preview extension for Magento http://www.aitoc.com/en/magentomods_custom_product_preview.html?utm_source=Magento+Forum&utm;_medium=How+do+I?+Questions&utm;_campaign=Kr
Custom Product Preview extension for Magento enables your customers to create a preview of the end-product by placing their custom image and/or text over your product image. As Admin, you will be able to upload a background image that represents the custom product and define the printing area, and your customers will be able to upload and position their images and/or text that are to be printed, embroidered, etc. on your products. This easy-to-use and intuitive tool can provide you with an image that serves as an agreement with your customer of what the end-product should look like.
AITOC Product Matrix enables admin to create and edit configurable products with TWO attributes in a convenient matrix form, where admin can specify configuration for each simple associated product. It creates a matrix where Admin can specify simple associated product’s configuration: name, price, SKU, weight, availability, quantity, visibility and status.
Please check out the full features list of the extension at the product page http://www.aitoc.com/en/magentomods_product_matrix.html?utm_source=Magento+Forum&utm;_medium=How+do+I?+Questions&utm;_campaign=Kr
If you need to work with configurable products with ANY number of attributes please check out Configurable Products Pro extension.
These are the must-have extensions that will save you a lot of time and effort.