In this “trash to treasure” inspired, small scale construction project, I used leftover and discarded items to build an upholstered shelf for our cat to hang out on.
See Instructable
See blog post
Misc foam pieces from an old matress
leftover upholstery fabric
sand off rough edges
mailing tube
mount shelves
CreativExplorations 
Good job using what’s on hand to make someone’s life more pleasant! Well thought out, useful, elegant solution.
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