Where are these traps in the Sanitarium map?

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To complete the Yuletide Horror seasonal objectives, one needs to use the "Tentacle Whip" and "Suction Trap" within the Sanitarium new map (already available through the open beta).
Where are these located within the map? I think I used all triggers (and killed zeds in with them), but my counters are still at 0.
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Images: Ann H, Tanner Johnson, Marina Leonova, Erik Mclean