5 m of round elastic band from 2,5 to 3 mm approximately.
5 m of flat elastic band. (width 4,5 mm)
adhesive baize. (the color you want !)
If your friends or parents call you to come and fix something, you don't need to always take your big metallic case, a small case can be enough.
I used a toilet bag which doesn't travel a lot !
Using a pencil case with a wallet shape and lateral zips is the best.
You'll find all your elastic bands in a haberdashety. (the saleswoman will be surprised !)
Make a gauge with a white sheet of paper that you'll have cut with the inner measures of your case.
Think of the stools you're going to take, put them on the sheet and draw their outlines.
Locate where you want elastic bands bands : in general, 4 bands for a screwdriver and a spanner. (see the picture)
Put the gauge on the rigid cardboard, draw the outline and cut it out with a shear.
Do the same to cut out adhesive baize, be careful : do it large enough to be able to recover some of the back face. (of the cardboard)
Always with your gauge, locate all your holes you'll make with a nail or a drill. (2 mm)
All the fasteners will be stopped with knots : the half-loops must be slack enough to slide screwdrivers handles or the spanners without drawing too much on them.
Here is your stoolkit ready ! But if, like me, people tell you in an ironic way : Eh ! You've brought your toothbrush ? Then hide it in the glove box or your breakdown service bag.....
A breakdownservice bag
In the same spirit that the handyman toolkit, arrange your aluminium bag according to your tastes, your favorite colors and your tools : only the support is different.
The surface is larger so it's better to get this kind of divider between the water bottles piled up on pallet, or simply, the bottom of an old cupboard : that pressed carboard's got the rigidity of the wood, and this time you'll need to drill all your holes.
The convenience of the bag (if your tools are well arranged), is that you will only need 2 knots for a line of tools : 1 at the beginning and 1 at the end, by going with the band in the following hole each time. But also you'll be able to add 2 lines of them.
The only disadvandage is you sometimes need two of each tool.