Your search for "grip bar end" revealed the following:
AELLA generic product Handle bar end titanium color (dia.30mm*3 mm thick) AT-W0007
$38.00Description of item Handle bar end titanium spacer (3 mm thick) Feel reducing engine vibration transmitted to the hand....
Rizoma MA531 Universal Flush Bar ends / Handlebar Caps MA531
$53.00Description Description Rizoma MA531 Universal Flush Bar ends / Handlebar Caps Simple parts with a strong aesthetic impact, Rizoma bar...
End Cap ZELIONI, handle bar end weight for Vespa GTS/GTS Super/GTV/GT 60/GT/GT L 125-300ccm ZELBEGEC
$10.26for Vespa GTS/GTS Super/GTV/GT 60/GT/GT L 125-300ccm CNC machined black anodised Product description "End Cap ZELIONI, handle bar end weight"...