Possible Clues:

• Things of only short-lived usefulness
• Transitory things, lasting only a short time
• Passing things
• Short-lived phenomena
• Insect that's found in objects of limited value
• Mirror raised, holding edge with uncertainty that is short-lived
• He's getting married in record time -- they won't last
• Collectibles such as ticket stubs and matchbooks
• Day-lilies perhaps arranged in mere heap
• Something that lasts only a short time