No, you can't, only in the EC.
You can't get a unicorn when you first sign up on to howrse. You have to buy unicorns at acutions or direct sales.
No. You can't buy a HOP on Howrse without opening it. It is impossible.
Buy them from the sales, you would probably need a few million e if buying from the auctions or 15-20 passes if buying form the PS. Also howrse sometimes has promos where you can win them in a HOP or by buying howrse cards. Also add me on howrse, im AMMMYAMMMY :)
buy a bunch of droppings each day, make into manure, and sell back
You can buy one in the sales. I prefer buying them in the direct sales for you can get them straight away. Then you can breed them.
After your 50th day on howrse, and every 30 days after that, Howrse lets you buy 1 pass with 20% of your eq.
Firstly, you will need 25 units of horse dung (that you can buy from the EC shop). When you have that, go to your meadows and click 'Make Manure from droppings'. Once you are on a page that says 'Start making manure' just click it. Once it is made, you can sell it at the shop for 190 each :-)
You can buy passes on howrse but they have to be with money. You can pay with Paypal or any other plan that howrse has. Or you can wait ever 30 days and pay a pass with equus that takes a long time.
You canot buy them but the amount in trading cards are endless. Buying them again from the market impossible.
No, You Cannot Buy Eggs On Howrse
Companions were sold on Howrse for a limited time, sort of like the Lottery; its a short phase. Only now can you buy rare horses with companions instead of buying companions to put on horses. Hopefully Howrse will bring them back
First, you will need to purchase at least 25 units of dung from the Equestrian Center shop. 25 units of dung will make one bag of manure. Then go to the pasture page of your Equestrian Center, and click the "Produce Manure" button. Then it will walk you through the next few steps!