Dyson Outlet via eBay offers the refurbished Dyson V6 Trigger DC58 Handheld Vacuum for $159.99. Apply coupon code "P20MEMDAY" and check out via PayPal for a final price of $127.99. With free shipping, that's $71 under the lowest price we could find for a new one elsewhere, although we saw a refurb for $3 less in April. Deal ends May 29.
Note: A 6-month Dyson warranty applies. Also, the above coupon can only be used once per PayPal account within a single transaction.