Anchoring food items

>Your Clown Loaches will prefer the the cucumber to your Lobelia and the
>Kribensis will probably not cooperate in protecting the plants. (They
>can be kept together.) If you keep cucumber in the aquarium
>continually, your plants will not be bothered.  In fact, the plants
>will take on a "hue" that I have never had before using cucumber.  {Cut}
> Try_ ripe_ banana as a treat and alternative sometimes.

I tried cucumber and banana the other day - both were a success (although
the cucumber became more relished after a day or two).
How do people anchor these items in the tank?  I've seen food clips in the
Mail Order Catalogue but was wondering if there was anything around the
house I could use.