Purchase and Sale of staff apparel

Hi All,

We sell items of clothing and often we purchase some items for our staff to wear - they do not have to pay for it as it is similar to 'marketing ' our product. 

When I make a purchase, I enter it under the particular Supplier - increase SOH by 1.

How do I enter the sale to reduce SOH but not affect the $? 

I am thinking I enter the sale under a 'cash sale' account and apply the payment to a 'petty cash staff' .

Thanks for your advice.