Your search for "handlebar clip-on" revealed the following:
SCRAMBLER DUCATI SUPERSPORT 950 Billet aluminium handlebar balancing weights
$45.92Precious components, elegantly finished, that improve the look of the bike. Manufactured in partnership with Rizoma. Not compatible with [p/n]...
DUCABIKE CV02D - DUCABIKE PUSH-BUTTON PANEL
$33.61Machined from solid in light alloy and colored surface treatment Product Description allows the assembly of our right hand pushbuttons...
Variable section handlebar (_ 22-29 mm/H 30 mm)
$135.60Variable section handlebar (_ 22-29 mm/H 30 mm) MA006A
DUCABIKE PANIGALE V4 CM06 - HANDLEBAR WEIGHT (UNIVERSAL) INSIDE DIAMETER FROM 13 - 18 MM
$52.167075 billet alluminium colored anodization All tubes with inside diameter from 13 mm to 18 mm included in the kit...