Cardboard tubes, a substantial number [>12] (Vauxhall SW8)

Cardboard tubes, could be used for artwork, model making or play
various lengths: 60.5 cm, 45.5 cm, 37.5 cm
diameter 2.5 cm

Also:
Bag of Corks from wine bottles, mostly 'real' cork
Could be used for artwork or play [not v. young children]