1 Ignore the partner's indifference
Passivity is not equal to indifference. If you are caressing some part of the partner's body with rapture, but his breath does not get bogged down, and he generally lies motionless, then it does not excite him.
He can be silent for various reasons. For example, he sees that you are kidding, and does not want to deprive you of this. But sex works in both directions, and it's more logical, if the partners are busy with the excitation of each other, and do not excite themselves about you.
2 To hesitate to voice your desires
If you want to try something new, do not hesitate to offer it to a partner. But it will be more correct for everyone if the request sounds like this: "I want to be tied up and spanked", and not like this: "I really want to put an anal tube in you."
In the first case, you voice your desire and assign another responsibility for its implementation and your comfort to another. If you ask for an action, then at least you are ready to try, as a maximum - you will be very pleased.
3 Use aromatic wax candles as sex toys
Just do not do that. It is almost always a burn and an allergic reaction.