From cheap to expensive:
Drill seatbumper (only a few g)
Cut a few nobs of your tire on the outside (around 50g)
Single bolt-seatclamp (around 50g)
Magnesium Pedals (around 200-300 depending on your current pedal)
CF-base (around 100 i guess)
Tensile cranks (100g each crank -> 200g total)
All in all you can make it about 500-700g lighter with that.
Edit: Sponge beat me to the tire cutting thing 
stripping the paint off the frame could save you as much as 6 grams!
That’s based on a KH29 frame though Mike.
You won’t save 6g on a trials frame. I reckon 5g at most!
But Ti bolts are way cooler and stronger then aluminium bolts 
Remove the spoke to the right of the valve, then, going clockwise, remove every 7th spoke and continue going around until it is even.
STM
And then buy some good running shoes and do parcour, you will save about 5,5 kg then
But not lighter or cheaper.
hmmm… depends on the paint though… I’d be surprised if it’s 4 grams actually.
To put the weight gain into perspective a single yale doorkey weighs 9.5 grams so lightening your pockets or shaving your head is probably much more worthwhile!
Thats true.
But if you want a sexy uni you gotta pay the big bucks 
Plus your frame will be smexy.
If you search the forum for similar threads, you’ll find lots of advice, as many people have discussed this topic before.
Let me start you off with this thread, however, as it has many great tips: I want my unicycle as light as possible
So i could strip the frame, cut a few kobbies off, i could get 125 moments, or tensiles, but i dont think i’ll be doing some of the other suggestions you said 
. I think the suggestions from probailer2, sponge, smileymarco and the others in this thread are alot better than the advice in that thread.
And don’t forget the drilled Moments!
and instead of buying a single bolt clamp just hacksaw your current one in half.Thats what i did and its great 
I drilled my bumper
short vid
Drill holes in the sides of your rim say, along each spoke ~ 5mm diameter.
Drill holes in the legs of your frame (I’ve never heard of a frame breaking there).
Get a Koxx-One Pit Fighter II seatpost.
Cut your post so only 2" is still in the neck. You might want to leave an inch or so extra for growing or you change your style (like higher seat for SIF hopping).
Or if you break posts w/ extreme regularity, get a KH longneck w/ a short Chro-molly post.
why did you bother lol you have a massive chunky muni seat.Why is the bumper useless now ? it wont break its only for protecting the foam and cover
OR you could just put it on the south beach diet. 
Like Amanda Gallacher’s:
Full uni:
She said it only saved ~ 30 g.
Its all good fun… If it breaks I will replace it… I dont care…