Since I don't have a bias tape maker...so, I just sort of 'make' one.... This is how I do it...

Material : Craft cutting blade, some fabric straps, hair straightener (yup...)

These are what I have on hand
a common craft cutting blade..
Prepare some fabric straps
 
Remove the end of the cutting blade
 
Remove the blade inside as well
 
Fold your fabric strap whichever way you want to bias tape to be... 
 
Insert the strap into the blade casing

A needle to push it will be helpful
 
Pull the strap from the tip...
 
Here comes the bias tape!!!
 
Use the thinner casing just the same way to product thinner bias tape
 
 
Easy Peasy...Quick! 
 
 Firm the shape with a hair straightener
 
What do you think?
Will you try this?
Let me know if this is useful!