What should i do if i need to change the packaging for a sold Ebay item?

[BenB]

It's not a big deal as the packaging dimensions are only used to determine how much money you get for shipping. Send it in whatever you want as long as it gets there safely.

Also, I would consider using Amazon. You get your money when you mark the item as shipped, not when the bidder feels like paying for it, if they pay for it. Additionally, no bidding -- just list it and wait for it to sell. If that wasn't exciting enough to make the change Amazon also only takes one cut from the sale while eBay will take a cut, and then charge you fees for listing the item once it sells; from my experience these fees are almost the same price as the finders fee(initial deduction).