If you want ordinary “card” loop was samarastroydetal like spring-loaded, easy to upgrade. For this of eyes loop is extracted axial rod, and the reverse installation is put one or two springs so that their ends rested on the loop. Eyes for necessary for this file.
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For clamping the tape of the compact cassette to the tape recorder head is jumped out of the spring with the felt used a foam "cube". And I do so. But to reduce friction tape on the...
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If the lattice bike rack seems not very convenient, to make him removable seat made from thick cut plywood or particleboard. It is mounted on the bottom decks.