How to make an active check box larger?

I would like a checkbox in a cell that when checked a check mark appears in the box and when checked again the checkmark goes away. I can get it to work fine except the box is ridiculously small and when you click on the box you get an "X", would rather a check mark. Excel 2010. I pull the box from Developer.Insert.Formcontrols then select the box form.

The properties size has no effect on the box size. I can get to work fine in MS Word but when pasting into Excel the check mark no longer functions.

Thanks for any direction.

---j: