A word to describe low cost solutions that work well but lack aesthetics

single-word-requests

I am looking for a word to describe the products or solutions to problems that are made at a very low cost, often home-made or by a very small organization. The products or solutions perform their function very well, but lack the aesthetics found in major brands or finished products at retail stores designed just for that purpose.

Examples include:

hand bags that are reasonably strong and functional, only a lot less attractive compared to expensive ones
a home-made camera mount built by a few pieces of wood, glues and rubber bands
blocking sunlight from the window with aluminum sheets

EDIT: There have been a few suggestions with "hack" and "improvise". However I do not wish to convey the meaning that the solution is temporary or rushed under time pressure. The key point is low cost and sacrificing elegance, decorations which are unnecessary to make it functional. The goal is cost-effective. I think "utilitarian" comes pretty close.

Solution 1:

serviceable, defined by Collins English Dictionary:

If you describe something as serviceable, you mean that it is good enough to be used and to perform its function.

His Arabic was not as good as his English, but serviceable enough.

that will give good service, esp. in hard use; durable

Example (Made up):

My husband build the bookshelves for his office. They are serviceable, especially for his heavy textbooks, but I wouldn't have them in the living room.

The definition I quoted does not explicitly mention low cost and devoid of frills, but I have never seen a luxury product described as serviceable.

Solution 2:

There are several words you can use specifically for things that are home-made:

Jury-rigged (North American) and its synonyms:
- makeshift; improvised
  _{Oxford Dictionaries}
Hack:
- To jury-rig or improvise something inelegant but effective, usually as a temporary solution to a problem.
  _{Urban Dictionary}
- See also lifehack. Your last point is something I'd expect to see on Life Hacks SE.

A more general term would be cost-effective:

Effective or productive in relation to its cost.
_{Oxford Dictionaries}

Solution 3:

Homebrew

1.1 US informal as modifier
Made at home, rather than in a shop or factory.
‘a home-brew radio transmitter’
— OD

Quoting wikipedia for the ham radio usage ...

Homebrew is an amateur radio slang term for home-built, noncommercial radio equipment. Design and construction of equipment from first principles is valued by amateur radio hobbyists, known as "hams", for educational value, and to allow experimentation and development of techniques or levels of performance not readily available as commercial products. Some items can be home-brewed at similar or lower cost than purchased equivalents.