Lost my Oticon HA cleaning tool

Ask your audi for a new one.

Do you mean the one like this?

http://www.ebay.com/itm/Hearing-Aid-Multi-Cleaning-Tool-Magnet-Brush-Wax-Cleaner-Care-Hearing-Aids-/162185337334?hash=item25c2ffd9f6:g:3R0AAOSwvzRXxTLx14

https://www.amazon.com/Hearing-Aid-Cleaning-Brushes-pack/dp/B004VRLUQ6/ref=sr_1_3_a_it?ie=UTF8&qid=1478820178&sr=8-3&keywords=hearing+aid+cleaning+kit51

Just ask your audiologist about a new one. They probably have a spare or two for just this purpose and will give you one. If they give you an outrageous price for one then look on the internet as above.