<P> Four fully functioning props were commissioned for the first serial "The Daleks" in 1963, and were constructed from BBC plans by Shawcraft Engineering . These became known in fan circles as "Mk I Daleks". Shawcraft were also commissioned to construct approximately 20 Daleks for the two Dalek movies in 1965 and 1966 (see below). Some of these movie props filtered back to the BBC and were seen in the televised serials, notably The Chase, which was aired before the first movie's debut . The remaining props not bought by the BBC were either donated to charity or given away as prizes in competitions . </P> <P> The BBC's own Dalek props were reused many times, with components of the original Shawcraft "Mk I Daleks" surviving right through to their final classic series appearance in 1988 . But years of storage and repainting took their toll . By the time of the Sixth Doctor's Revelation of the Daleks new props were being manufactured out of fibreglass . These models were lighter and more affordable to construct than their predecessors . These newer models were slightly bulkier in appearance around the mid-shoulder section, and also had a redesigned skirt section which was more vertical at the back . Other minor changes were made to the design due to these new construction methods, including altering the fender and incorporating the arm boxes, collars, and slats into a single fibreglass moulding . These props were repainted in grey for the Seventh Doctor serial Remembrance of the Daleks and designated as "Renegade Daleks"; another redesign, painted in cream and gold, became the "Imperial Dalek" faction . </P> <P> New Dalek props were built for the 21st century version of Doctor Who . The first, which appeared alone in the 2005 episode "Dalek", was built by modelmaker Mike Tucker . Additional Dalek props based on Tucker's master were subsequently built out of fibreglass by Cardiff - based Specialist Models . </P> <P> Wishing to create an alien creature that did not look like a "man in a suit", Terry Nation stated in his script for the first Dalek serial that they should have no legs . He was also inspired by a performance by the Georgian National Ballet, in which dancers in long skirts appeared to glide across the stage . For many of the shows, the Daleks were operated by retired ballet dancers wearing black socks while sitting inside the Dalek . Raymond Cusick (who died on 21 February 2013) was given the task of designing the Daleks when Ridley Scott, then a designer for the BBC, proved unavailable after having been initially assigned to their debut serial . An account in Jeremy Bentham's Doctor Who--The Early Years (1986) says that after Nation wrote the script, Cusick was given only an hour to come up with the design for the Daleks, and was inspired in his initial sketches by a pepper shaker on a table . Cusick himself, however, states that he based it on a man seated in a chair, and only used the pepper shaker to demonstrate how it might move . </P>

Who killed all the daleks who do you think