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https://trailhead.salesforce.com/trails/learn_salesforce_with_trailhead
Water bottle for completing "Sell Lightning Fast with Sales Cloud"
https://trailhead.salesforce.com/trails/lex_end_user
Charging Cable for achieving “Adventurer” level by end of 2018 (10 Badges and 9,000 points)
Trailblazer Hoodie for achieving “Mountaineer” level by end of 2018 (25 Badges and 18,000 points)