A rabbit harness might cost 5$-25$, depending where you live. However, a cat harness will work as well!
normally a rabbit cost is very little. usually about 300$ a year.
At a local pet store, a plain pet rabbit costs about $20. A fancier rabbit could cost as much as $50. At the butcher shop, rabbit is sold by weight with a typical rabbit costing $10 or less.
about $10.00!
It's best to use only a harness made for a rabbit on a rabbit. Although a Jack Russel may be the same size as your rabbit, its body is shaped very differently. An ill-fitting harness that prevents a rabbit from moving normally could lead to serious injury.
$108
go to a pet store and buy a rabbit harness that is better for them
around 10 bucks max
Get the rabbit to be used to you first, then put the harness close to her at all times so she will get used to the harness. Then gently try to put it on her, but don't push, force, or stress, otherwise the rabbit will lose its trust in you, and you need its trust. Slowly get your bunny used to the harness, just do it in a gentle way. Be patient. This can take days, months, even years! But don't get frustrated.
Ours cost $170 Canadian.
at petland pet smart etc
It really all depends on what shelter and what rabbit!
If your in the EU I think its free, no license needed. I never worried about it anyways