I NEED one of those!!!
£65 inc. P & P 
Go and make money off some other poor innocent. 
Wenchy, you probably have the parts to build one within the tat mountain:
a hand bellows
a small grille
a tube to attach to the front
1. Mount grille inside the tube and attach to the front of the bellows
2. Place open end over spider and open bellows, sucking spider in.
3. Find open window, poke outside and close bellows hard
4. Hope the next door neighbour isnt an arachnophobe as well
