Here are a list of all my Bonus prizes that I've found:
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Date: 3/8/2002
You found a bonus prize chatting at the Forums

Lolzbra is now in your Items
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Date: 5/26/2022
You found a bonus prize chatting at the Forums

Glitched Contact Lenses is now in your Items
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Date: 9/26/2022
You found a bonus prize chatting at the Forums

History of the Forums is now in your Items
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Date: 1/23/2023
You found a bonus prize chatting at the Forums

Troll Blaster is now in your Items