While I was on Amazon this morning... I found THIS:

http://www.amazon.com/gp/product/B00...pf_rd_i=507846

When we give catnip they spill it all over roll in it and make a huge mess. This nice scratcher thingey looks like it would work
for the catnip spot, and also the cats on Amazon seem to like it in the comments for other activities. So I am going to get this today,
and defer the other tube toy (which we don't "really" need at this time). Soon will be Houdini's outdoor introduction, not long now right after we have his neuter operation. (maybe in 2 weeks). He gets his CORE 3 rd vaccine shot Fri and I will make the operation appointment for him then after I talk to the Vet.
Once he goes outside, I don't think indoor toys are going to matter much to him anymore!

I need some other things from Amazon so we will qualify for free shipping.