Fun stuff:

Lamp: use a lever to activate it

• Spinner: use a circuit to make to spinner active. and if you have a Lasso polished with redstone I'll work for 25 secs
• Lasso: craftable with copper nuggets (3)
• Spring: it can activate by itself ...if you have Power of III
• Rower of I - III Enchantment: every redstone circuit can activate by itself for Power I: 15 Secs, Power II 30 secs, Power III 1 Min 
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