Unusuals I've had:
1. Nuts and bolts conquistador
2. nuts and bolts demoman's fro
3. steaming nanobalaclava
4. smoking glengarry bonnet
5. nuts and bolts trippler's tricorne
6. bubbling hard counter
7. stormy storm armored authority
8. stormy storm scotch bonnet
9. stormy storm pugilist's protector
10. circling tf2 logo hermes
11. bubbling armored authority
12. smoking texas ten gallon
13. purple confetti doctor's sack
14. cauldron bubbles sultan's ceremonial
15. stormy storm cosa nostra cap
16. burning flames detective noir
17. scorching flames frenchman's berret
18. smoking stately toe
19. stormy storm fancy fedora
20. eerie orbiting fire engineer's cap
21. p.fetti sober stuntman
22. burning flames defiant spartan
23. sunbeams chamer's chapeau
24. purple energy tyrant's helm
25. searing plasma attendant
26. blizzardy storm vintage tyrolean
27. green energy flipped trilby
28. blizzardy storm kabuto
29. orbiting planets attendant
30. oribiting fire troublemaker's tosslecap
31. searing soldier's stash
32. sunbeams sola topi
33. sunbeams ol' geezer
34. tf logo defiant spartan