Some recent casual dresses designer auctions on eBay:

Designer 7227 Womens Ivory Knit Open Stitch Sleeveless Casual Dress BHFO

$0.99 (1 Bid)
End Date: Wednesday Jun-28-2017 20:16:33 PDT
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Designer 8734 Womens Pink Smocked Strapless A-Line Casual Dress BHFO
$2.25 (3 Bids)
End Date: Tuesday Jun-27-2017 22:23:15 PDT
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NWOT Macys Design History Black Stretch Sleeveless Casual Dress Size L
$4.99 (0 Bids)
End Date: Wednesday Jun-28-2017 6:47:57 PDT
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Japna womens dress sleeveless casual printed design multi color size XS
End Date: Monday Jul-24-2017 10:13:53 PDT
Buy It Now for only: $9.99
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