How do I use a Checkbox in custom fields ?

[jude_w]

Hello, my name's Jude.

My friend just hired some hot models and I'm making a website letting men pay for taking hot photos of the models.
In the add to cart page, I want to know where my customers want to take the photos, or let them choose some clothes from the list.
The only thing I need is a checkbox rather than a radio button. I hope I can adding some custom fields with Cart Attribute that may become a checkbox in the front-end so that the customers can choose the places or clothes.
I've tried find the solution almost a week, but got no way to solve this problem.
How can I customize the codes to make this possible ?
Thank you so much.

[techton]

hello every one,

I am new to VM. i have same issue, in product detail i want to add 4 check boxes and one set of 3 radio button, no chance how to do.

[jbmd]

For fast solution use dropdown with default value and no charge.

[balai]

For anyone interested we have added the checkboxes in our "Custom fields for all" plugin
http://breakdesigns.net/extensions/customfields-for-all