I'd like to add that my linnie also loves his boing. I stretched it out and attached it like a horizontal perch. It goes up and down and it looks like he is riding a roller coaster as he goes along!Gigi likes sola wood that she can destroy, leather strings and knots, long toys that can be manipulated (through things or over perches), toys that make noise with bells, things she can climb through and hang from, crinkle paper she can pull out, crunchy wicker toys, boings, orbiters and seagrass.
I tried that once with Kiwi and Blizzard and they kind of liked it, but it took up a ton of space in their cage so I put it back up like normal. It was hilarious when they walked on itI'd like to add that my linnie also loves his boing. I stretched it out and attached it like a horizontal perch. It goes up and down and it looks like he is riding a roller coaster as he goes along!