Clown suit for Philip with Big Red nose
front motor powered by second battery
Computer that indicates speed and battery life remaining.
Battery case for mobile phones
Thin tires so that just pedaling is easier
generating power while baking
Digital Spedometer with distance memory - and why not, maybe a GPS Navigation unit.
Surf board holder, luggage carrier (rack)
speedometer, electronic battery meter
500 +watt motor.smaller tires