1st - I noticed this was your very first post - so, Welcome Aboard TreasureHunt26! You didn't list your state (or country) in your profile. So, you might consider jumping over to Sub-Forums: Select Your Area.... and selecting location information (i.e., clubs, hunts, finds, legends, maps, etc.) directly related to your state (or country).
2nd - I moved from Today's Finds! over to Forum: What Is It? for more exposure.
The piece on the right looks like an old soft metal fuse link used on fire doors, but it's most likely a chunk of melted aluminum can that just melted in that shape.