Series 3 Dashboard Markers Rattling

I know it's not mechanically serious, but, the noise is really getting on my wick - the switch markers on the right hand side of the plastic dash panel rattle around at certain engine speeds.

Has anyone else had this problem? If so, how did you deal with it?

I'm thinking of a small blob of Tiger seal put on from the back - good idea or bad idea?

Good idea.

Col