These are listed in the order you're most likely to come across them as you progress through the game. Have fun!
Gold Nessie: In Nancy's room, next to the lamp on the nightstand where you found the case file.
Icicle: In the hotel hall, hanging from the lamp outside Nancy's room (to the left of her door).
Owl (the logo of the Glaucus Hotel): Outside the hotel, underneath the bench behind Bridget's usual spot.
Wyvern: In the train station, hanging from one of the chairs outside the Loch Lomond gate (only visible when you're standing with your back to the Loch Lomond gate).
Irish knot and jade bead: In Moira's house, on top of the purple vase on the right side of the mantle.
Bow and arrow: In Loch Lomond, hanging from the Brae Arena sign outside the training arena.
Crown: In Bridget's room, hanging on the back of the blue chair to the left of the bed.