Nico Surings, from Eindhoven, Netherlands broke the world record of running 100m barefooted on ice the fastest. His time was 17.35 seconds! (December 28th 2006)
The most leaves on a clover - 18
Furthest eyeball popper - 12mm
Heaviest car balanced on head - 159.6 kg (352 lb)
Heaviest weight lifted by ear - 61.7 kg (136 lb)
Largest container of body cream - 1,124,490 ml (247.4 gal/323.4 US gal)
Longest fingernails - 7 m 51.3 cm (24 ft 7.8 in)
Longest ear hair - 13.2 cm (5.19 in)
Longest ears on a dog - 34.9 cm (13.75 in) and 34.2 cm (13.5 in)
Largest ears on a rabbit - 79 cm (31.125 in) The rabbit was called Nippers.
Longest hair - 5.627 m (18 ft 5.54 in)
Longest tongue - 9.5 cm (3.74 in)
Most concrete blocks broken in a minute - 317
Most fingers and toes on a living person - 25
Most live rattlesnakes held in mouth - 10
Most to parachute from a balloon simultaneously - 20
Most pierced woman - 720 Piercings
Most rattlesnakes sat in a bathtub with - 87
Most spoons balanced on face - 15 stainless steel spoons
Most tattooed person - 100%
Most tennis balls fitted into a dogs mouth - 5
The Ultra-Marathon Cycling Association sanctions long-distance cycling record attempts.
If you want to see the rules and process for setting a record under the UMCA, you can see their rules here - http://www.ultracycling.com/images/records_info_packet.pdf. The rules set up by the UMCA are as strict or stricter than any other cycling governing body in the world. 3 officials, 2 sets of timing including electronic timing, sponges for track, etc. I highly doubt anyone can argue the validity of any timed or distance record attempt they sanction.
That being said, the two records above are the World 24 Hour Records for Road and Track.