Most of the sex toys worth owning, cost money. They're not manufactured all that well to begin with on the cheaper end of the spectrum.
As for toys you can both enjoy are you talking double-ended dildo, or that you don't enjoy watching her squirm as you use a toy on her? Because, most of the guy toys are either cock rings, fake pussies, or buttplugs of some form or another.
If you're looking for restraints, throw the fuzzy handcuffs away and get some Sport Cuffs by Sheer. They're soft, neoprene, washable, durable, and she can pull against them without hurting herself. (Or you without hurting yourself.) Plus, your bed won't be covered in fur like you raped a muppet on it.
Typical sex shop items. Bondage tape, japanese "silk rope" cuffs... a good quality blindfold such as the one that liberator sells? Really it depends upon what you're into, what you want to get into, and how much money you have to spend.
Currently the only two items on my "must buy" list are a Sybian and a Do Me Chair. Both are about $1300 each + shipping. Again, how committed to sex are you, how much does she like toys, and how much do you realistically feel you will use these implements?
"Well, then," the Cat went on, "you see a dog growls when it's angry, and wags its tail when it's pleased. Now I growl when I'm pleased, and wag my tail when I'm angry. Therefore I'm mad."