An Australian woman has taken revenge on her cheating husband by auctioning his mistress's "huge" panties and his "size small" condom packet on eBay.

The seller, named only as Anna from Queensland state, says next in line for auction will probably be her husband's Harley Davidson motorcycle "at a start price of 99 cents and, of course, with no reserve!"

A photograph shows the lacy black underpants, described as "size humongous" and the "size small" condom wrapper, which the woman found in her bed after her husband's alleged affair with a woman named Kylie.

Anna says of the panties: "They are so huge I thought they may make someone a nice shawl or, even better, something for Halloween perhaps."

She describes how she returned home early from work after her "soon to be ex-husband" of 22 years mistakenly sent her a romantic text message meant for the other woman, to find him discouraging her from entering their bedroom.

In the room she found the empty condom wrapper under his pillow and "The Tart's panties at the foot of the bed".

The listing was initially taken down by eBay because of its policy of refusing to sell secondhand underwear, spokeswoman Inessa Jackson told Brisbane's Courier Mail.

"We let her know about the policy and instead she's now selling a photograph of the offending knickers," Jackson said.

"eBay does connect colourful buyers with colourful sellers and I wouldn't be surprised if someone did buy these items, though I couldn't speculate on who would buy them or why.

"This is obviously very therapeutic for this woman and it must be a great channel for her views on cheating and the sanctity of marriage."

The photograph, which had a starting price of just 69 US cents, down from the original 99 cents asked for the actual items, had received 47 bids by Thursday, with the top offer standing at 127.50 US dollars with four days to go.

The listing, along with the wife's story, has been added to eBay Australia's Best of eBay site at http://bestof.ebay.com.au.