So, the main problem with flowers is that they simply die, and it's such a shame because when you give someone flowers you want to show them how much you appreciate them, and if they just disappear after a few weeks why not buy something else a little more permanent?
Well, another alternative, is to simply MAKE your own paper bouquet. It's actually a lot simpler than you think, but it can be a lot more time consuming.
Firstly you'll need some square paper (preferably with pretty patterns drawn on) a good place to look would be a stationary store, or somewhere like Morning Glory, definitely need glue, paper clips (a whole bunch of them), and you can choose between a Styrofoam ball and skewers, or some wires (I'll get to this in a sec).
You can get these from your local arts and crafts store
So, you will need to decide what type of flower you want to make, I've found that this flower is the easiest to make as well as looks the nicest, there are many other flowers you can pick from such as here but it's really your choice. So for the flower linked above, as you can see there are many parts of the flower that make the whole, so what I've found is that when you're gluing the flowers together, you can hold them in place using paperclips so that you can leave them somewhere to dry when you work on the next batch.
Now for what I mentioned earlier, the Styrofoam ball vs the wires. So when making your flowers, you can either place them on wires and bunch them together like stems, or what you can do is place the flowers on skewers and stick them into the ball so that they stay permanently in place. I found it was easier to use the ball (partially because I wasn't actually aware of the wire method) but be cautious that when using the ball it is harder to find a way to make it stand up, or find a vase that it fits nicely into, so do keep this in mind, where I managed to get extremely lucky that everything worked out by chance, I would highly suggest working it out earlier.
Now if you're just using wires, stick the flowers on the end and twist them together with a nice wrapping underneath and you're done, but if you're using a ball, you really don't want the base of your flowers to be white, so I suggest you get painting. I chose to paint multi-coloured for the flowers to blend in, but you could make it any colour you like to suit your colour scheme, or even simply green to match stems.
Using a cup to keep the ball steady works wonders
Once done, I personally decided to use a Styrofoam cone to work as a base, where I glued it together with a skewer in between to keep things in place (this was a little wobbly so I would suggest using better glue, a better fitting cone or simply cutting out bits of Styrofoam to make it fit together more smoothly).
So now it's time to stick your flowers in, and I know what you're thinking, do you need to glue them in? Well the thing is, the skewers fit in so nicely into the ball that I found it was easier to poke a hole in the ball first with a different skewer before putting in the flower. A dab of glue on the end will make doubly sure that it'll never fall out if you're nervous. You can use a normal stick of glue if you want, or there is special glue for Styrofoam which apparently works wonders.
Be careful as to where you space the flowers apart to minimise gaps
So once you've made all your flowers, stuck them all in and glued everything together, you really want that little last touch to make it look more like a real bouquet, which of course includes wrapping it up and adding a nice bow. So you can really use any wrapping you have and any ribbon, just to tidy everything up (and to hide away all the bits that you don't want seen) and voila you have yourself a lovely paper bouquet.
If you wanted to be extra fancy you could try and spray the flowers with perfume, but be aware this may damage the paper, by making it spot marked from any drips, or the perfume itself may damage the paper and ruin the patterns/colours, so be wary.
Lastly some people like to put pearls or beads into the centers of the kusudama flowers just to cover the hole and keep everything together, but once again that's entirely your choice.