To see all the videos on 'YouTube' from
Richard Hirstwood click here otherwise the picture links below will
take you to the individual videos.
You can also search You Tube for Richardh53 and you will
find them.
How to fit wheels to
projectors.
Bubble Tubes. 
Instructions for the voice distortion
units.
A quick idea for glowing balls and
tactile walls.
A floor which may make it into sensory
rooms.
other sensory related videos we found on
YouTube
Windwriting