If you are looking for car window shades for the front window that support customization, there are a few options available:

1. Custom Tinting: Instead of using standard window shades, you can consider getting your front windows professionally tinted. Window tinting can provide sun protection, privacy, and a customized look. However, keep in mind that local regulations regarding window tint darkness levels may apply.

2. Custom Printing: Some companies offer custom printing services for car window shades. You can have your own design, artwork, logo, or text printed on the shades to personalize them.

3. Custom Measurements: Certain manufacturers may provide the option to customize the size and dimensions of the window shades to perfectly fit your front windows.

To find companies that offer customization services for car window shades, you can search online or visit automotive accessory stores. Make sure to communicate your specific customization requirements and inquire about any additional costs or lead time associated with customization.

It's important to note that local laws and regulations regarding the use of window shades and tinting vary, so ensure that any modifications comply with the applicable regulations in your area.