1. Vanity: You need a wall mirror and some alcohol (beer, rum or whatever). All you have to do is put the wall mirror on a wall, drink the alcohol and use the wall mirror 300 times while you are drunk.
2. Oops: You need a birdcage. You will need to use the birdcage until the bird will die from heart attack.
3. Interior Decorator: If you have your own NPC at your house. Just buy 1000 furniture kits.
4. Mister Sandman: Using a bed or a cot 500 times.
There is also achievements you can do inside protection zone but you will have to buy some stuff.
Ice Sculptor and Cold as Ice: Obtainable by sculpting an Ice Mammoth from Ice Cubes by using an Obsidian Knife on it.1 for Ice Sculptor, 10 for Cold as Ice. (It is better to do during the colours of magic world event)
Marblelous and Marble Madness: Obtainable by making a Beautiful Marble Statue from a Piece of Marble Rock. 1 for Mabrblelous, 5 for Mable Madness.
Clay Fighter and Clay to Fame: Obtainable by making a Pretty Clay Statue from a Clay Lump. 1 for Clay Fighter, 5 for Clay to Fame.
Rockstar: Obtainable by playing Musical Instruments 10,000 times.