Does anyone know were to find mechanical skills?

I think you can develop Mechanical skills by getting the Rocket bench.

Hiya, umm you can don't have to work to get the mechanical skills, you just have to find the skills, I don't know which is which but here you go.

Saturday Skill Points
Points from 12.01am till 7.59am
In Atrium Centre
Next to the Store
Points from 8am till 3.59pm
In Sheriff's Office
Sun Deck
In the Freezer
Middle of the oasis in the Desert
Points from 4pm till 11.59pm
The Art Gallery
Bovine Sanctuary
Government Laboratory
Spa and Gym

Friday Skill Points
12.01 a.m. Next to the shower in the Rat Cave:
From 12.01am till 7.59am
In the Freezer
In the Sax Lounge
Points from 8am till 3.59pm
In the alcove in the Managerial Suite
Points from 4pm till 11.59pm
In the Lion Lounge
In the Saloon
In the Sheriff's Office
Thursday
Points from 12.01 till 7.59am
In Store
In front of abandoned space pod in the Desert
In Spa and Gym
Points from 8am till 3.59pm
In Furnace Room
In Atrium Centre
Points from 4pm till 11.59pm
Stairs in Basement

Wednesday
Points which appear at 12.01am will disappear at 7.59am
Points which appear at 8am will disappear at 3.59pm
Points which appear at 4pm will disappear at 11.59pm
12.01 a.m. Beside cattle shed in Town Square
8.00 a.m. In Lion Lounge
8.00 a.m. In Casino
8.00 a.m. In Bovine Shrine
8.00 a.m. In Honest Jackson's office in City Hall
4.00 p.m. In Vault
4.00 p.m. In alcove in Manager's Suite

Tuesday
Points which appear at 12.01am will disappear at 7.59am
Points which appear at 8am will disappear at 3.59pm
Points whic appear at 4pm will disappear at 11.59pm
12.01 a.m. In Secret Warehouse
12.01 a.m. Stairs in the Basement
8.00 a.m. In the 2nd Floor Lobby
4.00 p.m. In Gym and Spa
4.00 p.m. In Asian Emporium
4.00 p.m. In Furnace Room in Basement

Monday
12.01 a.m. Till 7.59am in Casino
12.01 a.m. Till 7.59 pm in Art Gallery
12.01 a.m. Till 7.59am Concierge's Desk
12.01 a.m. Till 7.59am in Vault
8.00 a.m. Till 3.59pm in Government Laboratory
8.00 a.m. Till 3.59pm in corner of Strangetown, next to the outer wall of the cattle pen
4.00 p.m. Till 11.59pm in Mamma Hogg's bedroom

Sunday
12.01 a.m. Till 7.59am on Sun Deck
12.01 a.m. Till 7.59am next to Dance Floor in Saloon
8.00 a.m. Till 3.59pm in Secret Warehouse (blue container thing)
8.00 a.m. Till 3.59pm in bathroom of Asian Emporium
8.00 a.m. Till 3.59pm in Sax Lounge
4.00 p.m. Till 11.59pm in Freezer
4.00 pm. Till 11.59pm in Hotel Lobby

Mechanical (or any skill points) are completeley random to find. I think that on certain days certain points come up sometimes. Hang in there it took me almost a week to complete the final mission.

Hope I helped