http://www.ebay.co.uk/itm/2mm-Gold-Bullet-Connectors-10-Pairs-Male-Female-Banana-Plug-Socket-UK-RC-Motor-/200987575496?hash=item2ecbcb04c8
These are ideal replacements. Smaller and neater, but you'll probably have to solder them. I found the crimping method pretty crappy, anyway.
@mattioats started
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http://www.ebay.co.uk/itm/2mm-Gold-Bullet-Connectors-10-Pairs-Male-Female-Banana-Plug-Socket-UK-RC-Motor-/200987575496?hash=item2ecbcb04c8
These are ideal replacements. Smaller and neater, but you'll probably have to solder them. I found the crimping method pretty crappy, anyway.