Hourglass
From Tardis Wiki, the free Doctor Who reference
An hourglass was a glass object which measured time using grains of sand.
Lady Aesculapius once went to a time before time to gift Urizen a glass which tapered in the middle and rose outwards, with sand encased within; he did not recognise what it was, but the gift made him think. (PROSE: Our Finest Gifts We Bring [+]Loading...["Our Finest Gifts We Bring (short story)"])
Within the Time Temple, Father Time attempted to kill Jamie McCrimmon by placing him in the bottom half of an hourglass where he would be buried in the sand. However, Jamie ultimately escaped. (COMIC: Father Time)
