Easter egg: On the 'choose their fate' version of the movie, straight after Ashlyn says 'oh a few degrees won't hurt' you get asked which temperature she should change it to (73 degrees or 76 degrees) if you choose 76 degrees, you see Ashlyn and Ashley's alternate death. Instead of being incinerated, the pair are electrocuted, as Ashlyn manages to get out of her tanning bed before the wood shelf jams the pair in, instead she is hit in the head (and knocked unconscious) by the wooden shelf. She later awakens, frees the wood from Ashley's bed, and quotes "I got you" and grabs Ashley's hand, but the glass of the bed underneath Ashley breaks, and she falls into the wiring of the tanning bed, electrocuting them both.
Easter egg: If you choose the DVD option which allows you to pick who dies, pick tails on the first coin flip and all of the characters survive.
Answer: A sickle is a harvesting tool with a crescent-shaped blade (with the sharp edge on the inside) as seen on the old USSR flag (along with a hammer). It's a reference to Death, who is most often seen dressed in black cloak with a scythe. On rare occasions Death has a sickle, but more often it's people confusing the two tools or thinking the words are synonymous. Plus, it's easier for some people to say "sickle" than "scythe." Ian is saying Death is on the ride.
Bishop73