Perform the following trick when your accessories have sold out and you need to restock. Click 'Edit' and then tap on the item which needs to be restocked and select the 'Box' option. This will return the accessory back into the 'Shop' menu. Select 'Back' then click the 'Shop' menu and go to 'Accessory'. Your accessory will now be here with the lable 'Place' under it. Select the accessory and place it back into your store. You will now find that the accessory has been completely restocked without decreasing your cash.